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  • Suspension Database

    I have compiled a database of manufacturer supplied after market specifications on struts, springs and shocks for the Prado 120 into a single thread.

    Approximate and measured standard Prado 120 & 150 data is included for comparison purposes. Feel free to post any additional manufacturer supplied suspension data and I will add it to the codes.

    Thanks to AMTS, the database can also be downloaded in Excel format here:
    https://app.box.com/s/q01btk5zdj5xp5nx53nb

    Front Strut Data
    Code:
    Front Strut               Open  Travel Closed Notes
                              (mm)   (mm)   (mm)
    Standard     Prado 120     541    111    430  Measured
    GrandeTEMS   Prado 120     540    120    420  Measured
    Standard     Prado 150     555    122    433  Measured
    Standard     FJ Cruiser    541    106    435  Measured
    Standard     Hilux         555    125    430  Measured
    ------------
    Bilstein     BE5-A480      561    125    436  #P/No 24-104807
    Bilstein     BE5-A712      560    125    435  #120
    Bilstein     BE5-D563      575    142    433  #Hilux strut
    Bilstein     5100          573    140    433  #P/No 24-186711 2007-09 FJUSA/120
    Bilstein     5100          571    124    447  #P/No 24-196499 2010-15 FJUSA & Oz/150
    Bilstein     24-173032     555    135    420  #150/FJ *no longer imported
    Bilstein     24-173032-1   570    150    420  #150/FJ *no longer imported
    Bilstein     24-238762     570    145    425  #120/Hilux *no longer imported
    CalOffroad   24-218528     555    122    433
    CalOffroad   24-218528     575    142    433
    CalOffroad   24-218528     595    162    433
    Dobinsons    GS59-221      548    121    427
    Dobinsons    GS59-700      548    121    427  Prado 150 strut
    Dobinsons    GS59-220      560    125    435  Hilux strut
    Dobinsons    MR59-50221    560    133    427  120 Front Std
    Dobinsons    MR59-50700    570    143    427  Prado 150 strut Order with 221 shock bush if fitting to 120
    EFS          38-5637       560    130    430
    Ironman      12710GR       540    132    408
    Ironman      12710GR       565    132    433  Measured
    Ironman      12750GR       552    127    425  Prado 150 Strut
    Ironman      45710FE       566    131    435
    King         25001-261A    565    125    440  A' in P/no = adjustable
    Koni         82-2522       555    125    430
    Koni RAID    88-1712       548    117    431
    Koni RAID    88-1712SP     563    133    430
    KYB S4       841004        568    165    403
    KYB S4       841002        572    165    407  Hilux strut
    KYB S4       841008        568    165    403  Prado 150 strut
    Lovells      646821100     555    155    400
    Lovells      64610087A     570    150    420  Hilux strut
    Lovells      64610087F     570    150    420  FJ Cruiser/Prado 150 strut
    Monroe       D8024         554    125    429
    OME Sport    90000         570    130    440  Measured
    OME Sport    90000         543    130    413
    OME Sport    90010         543    130    413  Prado 150 strut
    Profender    21537         573    138    435
    Ridepro      ZS167140      550    140    410
    Superior     SRCP1203F     574    174    400  3” strut
    Superior     SRCP1204F     660    210    450  4” strut
    TJM XGS Gold 659GE188L     555    135    420  120 strut
    TJM 4000     XS188L        555    135    420  150 strut
    Toughdog     BM404400      564    139    425
    Toughdog     BM404600      575    145    430  Hilux strut
    # includes shroud spacer

    Front Coil Data
    Code:
    Front Coil                Free length  Spring rate  Spring rate Notes
                                  mm          N/mm         lb/in
    Standard     Prado 120        370                     580/585   Measured Petrol
    Standard     Prado 120        370                       620     Measured Diesel
    Standard     Prado 150        345                       780     Measured Diesel
    Standard     FJ Cruiser       355                     590/595   Measured Passenger/Driver side
    Standard     Hilux            369                       565     Dobinsons data
    ----------
    Dobinsons    C59-128          330         102.7        586*     Lowered
    Dobinsons    C59-274          350         102.7        586*     Lowered
    Dobinsons    C59-134          370         102.7        586*     Standard height
    Dobinsons    C59-300          385         102.7        586*
    Dobinsons    C59-302          395         102.7        586*
    Dobinsons    C59-314          405         102.7        586*
    Dobinsons    C59-350          380          127         725*     Prado 150
    Dobinsons    C59-352          385          127         725*     Prado 150
    Dobinsons    C59-354          390          127         725*     Prado 150
    Dobinsons    C59-514          340                       790
    Dobinsons    C59-718          365          127         725*
    Dobinsons    C59-724       370L/375R       127         725*     Prado 150 KDSS
    Dobinsons    C59-726       380L/385R       127         725*     Prado 150 KDSS
    EFS          TPR-104E         375                       650
    EFS          TPR-104HDE       370                       800
    H&R          X/K              365                       675
    Ironman      TOY055B          380                       672
    Ironman      TOY055C          373                       834
    King         KTFS-101         355                       660
    King         KTFR-101         375                       660
    King         KTFR-101H        385                       660
    King         KTFR-101HD       370                       800
    King         KTFR-101HHD      390                       800
    King         KTFR-101T        405                     480-730   Taper, 0-50kg, light bullbar
    King         KTFR-101HT       415                     480-730   Taper, 50-100kg, steel bar, winch
    King         KTFR-101HDT      420                     500-800   Taper, 100-300kg, steel bar, winch, dual battery
    King         KTFR-121      350L/360R                    800     Prado 150 KDSS
    King         KTFS-121      335L/345R                    800     Prado 150 KDSS
    Lovells      TFS-118          345                       799
    Lovells      TFR-118          360                       799
    Lovells      TFR-118HD        352                       984
    Lovells      TFR-118EHD       345                      1125
    OME          883              375                       590
    OME          884              390                       590
    OME          885              395                       590
    OME          886              402                       660
    OME          887              400                       590     Prado 150
    OME          888              405                       590     Prado 150
    Ridepro      ZC7134           370                      586*     Standard height
    Ridepro      ZC7300           385                      586*
    Ridepro      ZC7302           395                      586*
    Ridepro      ZC7314           405                      586*
    Toughdog     TDC974           375                       660
    Toughdog     TDC974H          370                       800
    Toughdog     TDC974HH         390                       800
    TJM          770FR88IT        375                       660
    TJM          770FRHD88IT      385                       660
    Rear Shock Data
    Code:
    Rear Shock                 Open   Travel  Closed Notes
                                mm      mm      mm
    Standard     Prado 120     574     215     359   Measured
    GrandeTEMS   Prado 120     575     189     386   Measured
    Standard     Prado 150     569     206     363   Measured
    Standard     FJ Cruiser    570     208     362   Measured
    -------------
    Bilstein     BE5-A713      580     212     368
    Bilstein     BE5-A715      595     217     378   #Prado 150 shock P/No 24-238830
    Bilstein     B46-1478      599     211     388   #LC80 shockP/No 24-014786
    Bilstein     B46-1478LT    625     245     380   P/No 24-237024
    Bilstein     5100          597     218     379   P/No 33-187174
    Bilstein     5160          599     223     376   P/No 25-177909
    Bilstein     24-217897     610     230     380   #
    CalOffroad   24-228602     580     212     368
    CalOffroad   24-228602     590     210     380
    CalOffroad   24-228602     620     240     380
    Dobinsons    GS59-637      582     232     350
    Dobinsons    GS59-701      585     223     362   Prado 150 shock
    Dobinsons    GS59-682      630     250     380   LC80 shock
    Dobinsons    GS59-687      680     273     407   LC80 4” shock
    Dobinsons    MR59-50701    605     220     385   120/150 Rear Std Length can be ordered to 615mm by trimming inter
    Dobinsons    MR59-60701    605     229     376   Optional rear
    Dobinsons    MR59-60682    630     ???     ???   Optional rear 60mm body LC100 rear shock
    EFS          36-5586       583     225     358
    EFS          36-5587       615     232     383   Prado 150 shock
    Ironman      12682GR       618     245     373   Nitro gas
    Ironman      24682FE       618     245     373   Foam Cell
    Ironman      45682FE       618     235     383   Foam Cell Pro
    King         25001-262A    618     215     403   A' in P/no = adjustable
    King         25001-257A    650     252     398   LC80 shock'A' in P/no = adjustable
    Koni         82-2523       575     223     352
    Koni RAID    90-5404       587     197     390
    Koni RAID    88-1689       612     240     372   #LC80 shock
    KYB S4       845022        570     220     350
    KYB S4       845032        602     237     365   Prado 150 shock
    KYB S4       845004        608     238     370   LC80 shock
    Lovells      64612548      560     215     345
    Lovells LT   64612489      618     253     365   Series 2 Prado 120/Prado 150/FJ Cruiser/LC 80 shock
    Lovells LT   64612489      615     240     375   Series 3
    Monroe       D8019         573     210     354
    OME Sport    60004         580     224     356
    OME Sport    60080         603     235     368   Prado 150 shock
    OME          60112         580     224     356
    OME          N71E          620     250     370   LC80 shock
    OME Sport    60020         625     247     378   LC80 shock
    Profender    22135         650     255     395
    Ridepro      ZS117141      582     232     350
    Superior     SRCP1203R     620     235     385   3" shock
    Superior     SRCP1204R     670     260     410   4” shock
    TJM XGS Gold 650GE288L     599     221     378   120 shock
    TJM 4000     XS288L        600     225     375   150 shock
    Toughdog     BM401116      585     225     360
    Toughdog     BM401118      620     240     380   Prado 120 bushing
    Toughdog     BM401111      620     245     375   LC80/Prado 150 shock
    Toughdog     FC4111        634     249     385   Prado 150 shock
    # includes shroud spacer

    Rear Coil Data
    Code:
    Rear Coil                 Free length  Spring rate         Notes
                                   mm          N/mm     lb/in
    Standard     Prado 120        380                    200   Measured Petrol
    Standard     Prado 150        375                    210   Measured Diesel
    Standard     FJ Cruiser       385                    195   Measured
    ----------
    AMTS         120ABMD          420                    280   120 Prado Grande rear airbag to coil conversion, 40-50mm lift, standard weight
    AMTS         120ABHD          425                    300   120 Prado Grande rear airbag to coil conversion, 40-50mm lift, up to 175kg
    AMTS         120ABHHD         425                    330   120 Prado Grande rear airbag to coil conversion, 40-50mm lift, 175kg to 300kg
    AMTS         150ABMD          ---                    280   150 Prado Kakadu rear airbag to coil conversion, 40-50mm lift, standard weight
    AMTS         150ABHD          ---                    300   150 Prado Kakadu rear airbag to coil conversion, 40-50mm lift, up to 175kg
    Dobinsons    C59-323          375                    215*
    Dobinsons    C59-325          420          38.6      220*
    Dobinsons    C59-327          410          47.5      271*
    Dobinsons    C59-329          410          58.3      332*
    Dobinsons    C59-397          460                    225
    Dobinsons    C59-487          430           49       280
    Dobinsons    C59-443V         470                          Approx 53-58N/mm at ride height with some constant load
    Dobinsons    C59-627          420                    270
    Dobinsons    C59-725       415L/430R       38.6      220*  Prado 150 KDSS
    Dobinsons    C59-727       415L/430R       47.5      270*  Prado 150 KDSS
    Dobinsons    C59-729       415L/430R       58.3      333*  Prado 150 KDSS
    EFS          TPR-105E         390                    260
    EFS          TPR-105HDE       390                    310
    H&R          94127R           395                    280
    Ironman      TOY056B          392                    283
    Ironman      TOY056C          392                    356
    King         KTRS-102         365                    260
    King         KTRR-102         390                    260
    King         KTRR-102HD       390                    320
    King         KTPR-102         410                  190-320
    King         KTPR-102T        435                  160-270 Taper 0-300kg
    King         KTRS-102AB       380                    240   120 Prado Grande airbag conversion coil, Standard
    King         KTRR-102AB       405                    240   120 Prado Grande airbag conversion coil, Raised
    Lovells      TRS-119          380                    261
    Lovells      TRR-119          400                    261
    OME          895              390                    260
    OME          896              390                    318
    OME          897              390                    387
    OME          889              400                    260   Prado 150
    OME          898              400                    318   Prado 150
    OME          899              400                    387   Prado 150
    Ridepro      ZC7325           420          38.6      220*
    Ridepro      ZC7327           410          47.5      271*
    Ridepro      ZC7329           410          58.3      332*
    TJM          770RR88I         390                    260
    Toughdog     TDC975           390                    260
    Toughdog     TDC975H          390                    320
    *Data converted from N/mm to lb/in using this Spring Rate Converter:
    http://www.hraefn.net/projects/spring_rates.php
    N/mm can also be approximately converted to lb/in by multiplying by a factor of 5.71

    Ironman strut installation guide can be found here: http://www.ironman4x4.com/pdfs/suspe...structions.pdf

    General suspension guidelines:

    Many states, including NSW, limit suspension lifts to 50mm maximum before engineering certification is required.

    Always retain a minimum of 60mm downward suspension wheel travel following a suspension lift.

    It is a good idea to have 30mm of rake - i.e. the rear is 30mm higher than the front.

    Never fit a shock or strut that reaches minimum compressed length prior to reaching the appropriate bumpstop first.

    Never fit a shock or strut that allows components such as brake lines, cv joints and sway bars to limit suspension travel before the shock or strut reaches maximum extension.


    *** Other very useful suspension info:
    OEM strut and shock lengths for Toyota 4wd vehicles
    OEM coil spring rates for Toyota 4wd vehicles
    Bilstein struts and shocks Lengths and Valving
    120 and 150 series IFS after-market strut Valving as a function of Coil Rate
    Optimal Rear Valving and Coil Rate in the Prado
    Coil Spring Preload: What is it and what can we do with it?

    IFS Strut spacers and Coil spacers: How do they work and what can they break?
    The effects of motion ratio on IFS valving

    Lift vs Droop for various open length struts on Prado 120 IFS
    Ball joint and CV bind open lengths on the Prado 120 IFS coil out cycling
    OEM droop on factory 120 coils
    Can you get coil bind/solid coil on the 120 Prado IFS?

    Vehicle lift as a function of coil free length for 120 series Prado
    Critical Damping in Prado 120 struts and shocks

    Rear motion ratio on 4-link live axle on Prado 120 series
    Rear Lower Trailing Arm-Axle Housing Separation on Prado 120
    Rear Lower Trailing Arm-Axle Housing Separation: parallel measurements
    Main Fuel Tank – rear trailing UCA separation on Prado 120 series
    Coil bucket separation vs rear shock open length for Prado 120 series
    Rear lift, droop and shock open length variation for 120/150/FJ
    Extending rear sway bar links: maximum extension


    Optimal valving and coil rate for the 150 Prado IFS
    150 series front and rear lift vs coil free length


    Seized cam adjusters in front lower control arms
    HOW TO: Lower Control Arm Bushing Replacement

    Any specific data posted here may be manufacturers approximations or approximate measurements and are to be used at your own risk and as a guide only. All research and any parts fitted or modifications done are the responsibility of the individual. While all care is taken to provide accurate data, I take no responsibility for any errors, injury or damage that may occur as a result.
    amts
    Ninja Poster.
    Last edited by amts; 26-10-2019, 10:07 PM.
    "Sure it’s quiet, for a diesel, but that’s like being well-behaved… for a murderer."- Jeremy Clarkson

  • #2
    Great work Peter, well done...Its always good to have a single point of reference to go back to when trying to decide what setup is best. Thanks...
    2004 V6 Grande. BLACK -

    Comment


    • #3
      Interesting how the 150 has much different rear springs to the 120. No wonder they droop so much under tow in standard trim.
      08 VX D4D, Lift, Safari Snorkle, Trailblazer Fridge, Custom Storeage System, BFG, ARB Safari Bar, Wife, Kids, Codan NGT HF Radio, Debt.
      06 100 Series Sahara, Bilteins, Kings, Beaudesert 3", Diff drop, Unichip Q4, Safari Intercooler, EGR delete, 20ft Bushtracker, Codan Envoy more coming.
      Sometimes i wake up Grumpy, most times i leave her sleep.

      Comment


      • #4
        For the OME front strut I get 440 closed and 570 open. Just measured one up, center of bottom eye to base of top pin.

        Mick
        [CENTER][B][I][SIZE=1][COLOR=blue]1KZ-TE Turbo Diesel, 5 speed manual, 3.5 inch lift, 265/70/17 Mickey Thompson MTZ, D-Tronic chip, Boost controller, mandrel exhaust, dump pipe, modified intake, ARB steel bar, Magnum winch, Safari snorkel, rear drawers, half cargo barrier, dual batteries, Uniden UHF, Sat Nav, reverse camera, Magellan XL , Tjm bash plates, ARB alloy roof rack, rear telescopic work light and numerous other modifications!!!
        Now with 3BAR MAP sensor & 18PSI Boost![/COLOR][/SIZE][/I][/B][/CENTER]

        Comment


        • #5
          Originally posted by MickL View Post
          For the OME front strut I get 440 closed and 570 open. Just measured one up, center of bottom eye to base of top pin.

          Mick
          Thanks Mick,
          The OME data is from this thread: http://www.pradopoint.com/showthread...component-info.
          What is the OME part number of the strut you measured?
          "Sure it’s quiet, for a diesel, but that’s like being well-behaved… for a murderer."- Jeremy Clarkson

          Comment


          • #6
            Originally posted by Peterpilot View Post
            Thanks Mick,
            The OME data is from this thread: http://www.pradopoint.com/showthread...component-info.
            What is the OME part number of the strut you measured?
            N140S, the newer sport range (9000) measure the same. The actual travel is right, just not the open and closed length.
            No idea how OME measure but center of eye to base on top pin seems logical (ie; the mounting points) to me and matches more closely the other brand specs.

            Mick
            [CENTER][B][I][SIZE=1][COLOR=blue]1KZ-TE Turbo Diesel, 5 speed manual, 3.5 inch lift, 265/70/17 Mickey Thompson MTZ, D-Tronic chip, Boost controller, mandrel exhaust, dump pipe, modified intake, ARB steel bar, Magnum winch, Safari snorkel, rear drawers, half cargo barrier, dual batteries, Uniden UHF, Sat Nav, reverse camera, Magellan XL , Tjm bash plates, ARB alloy roof rack, rear telescopic work light and numerous other modifications!!!
            Now with 3BAR MAP sensor & 18PSI Boost![/COLOR][/SIZE][/I][/B][/CENTER]

            Comment


            • #7
              Suspension Database

              I agree with that method of measuring shocks, as depicted here:

              Click image for larger version

Name:	Shock Absorber Length Measurement.jpg
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              "Sure it’s quiet, for a diesel, but that’s like being well-behaved… for a murderer."- Jeremy Clarkson

              Comment


              • #8
                Originally posted by Rusty62 View Post
                Interesting how the 150 has much different rear springs to the 120. No wonder they droop so much under tow in standard trim.
                Actually, the standard data needs to be revised as soon as I get more accurate spring rates. There is no way the standard 120 series springs are as high as 270lb/in at the rear, or 624lb/in in the front. Especially when some aftermarket springs are rated lower than this.
                "Sure it’s quiet, for a diesel, but that’s like being well-behaved… for a murderer."- Jeremy Clarkson

                Comment


                • #9
                  Suspension Database

                  Added revised data as supplied by ARB.
                  "Sure it’s quiet, for a diesel, but that’s like being well-behaved… for a murderer."- Jeremy Clarkson

                  Comment


                  • #10
                    Has anyone or is anyone using the SRC suspension package??
                    2008 D4D Prado GXL - Pale Ale - GPS - UHF - ARB Bull Bar - ST Maxx -

                    Comment


                    • #11
                      Suspension Database

                      I have decided to take ARBs data with a pinch of salt. According to my calculations and based on actual lift achieved by other members, I suspect their spring rate to be considerably higher than the 590lb/in that they claim. Also, there is a clear discrepancy between what MickL measures on his OME strut and the measurements supplied by ARB.
                      "Sure it’s quiet, for a diesel, but that’s like being well-behaved… for a murderer."- Jeremy Clarkson

                      Comment


                      • #12
                        Originally posted by Robuck View Post
                        Has anyone or is anyone using the SRC suspension package??
                        Superior have only done a few of these on Prados so far:

                        http://www.pradopoint.com/showthread...l=1#post290320
                        "Sure it’s quiet, for a diesel, but that’s like being well-behaved… for a murderer."- Jeremy Clarkson

                        Comment


                        • #13
                          Originally posted by Peterpilot View Post
                          I have decided to take ARBs data with a pinch of salt. According to my calculations and based on actual lift achieved by other members, I suspect their spring rate to be considerably higher than the 590lb/in that they claim. Also, there is a clear discrepancy between what MickL measures on his OME strut and the measurements supplied by ARB.
                          Just have to be aware that not only the spring rate determines the ride height/amount of lift. The amount of spring preload also determines this. Just saying, and you may be right about the discrepancy.

                          Also, even if you have the dimensions of the coils, you still need the spring material to determine the spring rate. It would be hard to calculate the spring rate without knowing for sure what the material the spring is made from.
                          amts
                          Ninja Poster.
                          Last edited by amts; 22-06-2011, 01:14 PM.

                          Comment


                          • #14
                            If the free height of a spring is known and the amount of weight applied to a spring is known and the resulting compressed height of a spring is measured then the rate can be calculated. If the weight applied in pounds is divided by the spring compression in inches then the answer is lb/in.

                            Weight (lb) / Spring Compression (inches) = Spring rate (lb/in)

                            Also spring compression can be calculated if the free height and spring rate is known:

                            Weight (lb) / Spring Rate (lb/in) = Spring Compression (inches)
                            "Sure it’s quiet, for a diesel, but that’s like being well-behaved… for a murderer."- Jeremy Clarkson

                            Comment


                            • #15
                              If you increase the preload of a spring (eg. moving the spring seat on the Bilstein strut to a higher position) you gain more lift. The spring rate is still the same.

                              Also, the way we measure ride height does not equate to spring compression at the front axle. There is a multiplier involved. eg. if someone achieves 50mm lift, this does not mean that the distance between the top strut mount and the strut eye has changed by 50mm. It is in fact less than this.
                              amts
                              Ninja Poster.
                              Last edited by amts; 22-06-2011, 01:41 PM.

                              Comment

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