Bump in rear

[croozza Avid PP Poster! Find all posts View Profile Close croozza]

Simple fix is piss all that crap off, get rid of the air helpers (airbags), put the std bumpstops back in, get some proper springs that dont need the air bags, and get proper off road shockies.

[lekiboy Lurker Find all posts View Profile Close lekiboy]

crooza, that's just my inputs- you don'thave to be rude with it.when people don't agree with you, it's not the end of the world.
it's up to the thread starter to do what he wants...if he is going to do offroading then i think that's the time to put some serious money into his rig...otherwise, the airlifts are just fine for daily driving.

[croozza Avid PP Poster! Find all posts View Profile Close croozza]

crooza, that's just my inputs- you don'thave to be rude with it.when people don't agree with you, it's not the end of the world.
it's up to the thread starter to do what he wants...if he is going to do offroading then i think that's the time to put some serious money into his rig...otherwise, the airlifts are just fine for daily driving.

I'm sorry you feel that way, I dont feel i am being rude, I am just telling it like it is, I have had many years in the suspension game and would never use helper springs or airbags, I would only ever use quality suspension equipment, and equipment that is designed for proper offroad and load carrying situations. And at least spell my name right please.

[BigAl Lurker Find all posts View Profile Close BigAl]

the mallet type sound is I believe the rubber stops hitting the bottom part of the spring cradle... you can feel that thump all over the chassis nad the vehicle when it hits.. usually, this happens after going over a hump with considerable speed or when you're loaded and hit a medium hump..

I have replaced all my rear bushings- UCAs, LCAs, panhard bar, shocks and still, the thump was there. it only stopped when i installed the airlift 1000. my friend just suggested that instead of buying expensive new springs.

the rubber stops inside the springs are really hard- it feels like there is metal inside and was just covered by rubber skin...it's either you replace the spring to a stiffer one or an airlift (again) .

RIGHT SIDE:

LEFT SIDE:

I fitted Poly-Air's to my sons 4 Runner last year and he's happy with them. There only seems to be 25 - 30mm clearance between the bump stops and the axle. I took the bottom end of the shocks off and they seem OK. KYB same as your photo. I'm gunna try cutting a bit off the bump stops (Can always get some more). I don't do a much off road any more and tow a light 'van.

[BigAl Lurker Find all posts View Profile Close BigAl]

Another thing that can cause a clunk in the rear when driving over bumps is if the tail shaft slip joint is either running dry or over filled with grease.

I gave all the driveline a grease but it didn't change.

[BigAl Lurker Find all posts View Profile Close BigAl]

Another question for you BigAl, when do you hear the clunk? Is it at the top of the bump or when you are coming off it? I.e. could the clunk be the shock topping out after the compression? If the shock has poor compression it may be allowing to extend to quickly and is topping out?

Seems to be the top of the bump. Took the shockies off and they seem OK.

[lekiboy Lurker Find all posts View Profile Close lekiboy]

I fitted Poly-Air's to my sons 4 Runner last year and he's happy with them. There only seems to be 25 - 30mm clearance between the bump stops and the axle. I took the bottom end of the shocks off and they seem OK. KYB same as your photo. I'm gunna try cutting a bit off the bump stops (Can always get some more). I don't do a much off road any more and tow a light 'van.

i also replaced the bushings of the pan hard rod when i installed the air bags...the rig is dancing a little on turns plus i hear minor clunk on that area...after replacing, clunks are gone.

[lekiboy Lurker Find all posts View Profile Close lekiboy]

I'm sorry you feel that way, I dont feel i am being rude, I am just telling it like it is, I have had many years in the suspension game and would never use helper springs or airbags, I would only ever use quality suspension equipment, and equipment that is designed for proper offroad and load carrying situations. And at least spell my name right please.

all is good. sorry for misspelling your name.