Recovery points on 2021 Kakadu standard bumber

[gunda Member Find all posts View Profile Close gunda]

Your quaifications mean that your calculations need to be taken seriously. You're not sufficiently qualified to rate the hoops? What does it take?

I guess that not all tie-down points are created equally, and thus the generic warning? Is it possible that the Prado ones are significantly more robust that many / most others? Not something that I'd bothered to inspect before.

I didn't bother to watch that video by that other mechanical engineer, John C. I'd need to get a much larger bottle of sedatives to watch another one of his.

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

Your quaifications mean that your calculations need to be taken seriously. You're not sufficiently qualified to rate the hoops? What does it take?

I guess that not all tie-down points are created equally, and thus the generic warning? Is it possible that the Prado ones are significantly more robust that many / most others? Not something that I'd bothered to inspect before.

I didn't bother to watch that video by that other mechanical engineer, John C. I'd need to get a much larger bottle of sedatives to watch another one of his.

It's a few years since I did design, but the calculations are accurate for the hoops as described, 16mm diameter loop and double welded = 8T static load per side. You can also guarantee that the chassis is adequate to take that load otherwise Toyota would have made them smaller. Just looking at the setup it is very solid.

The point that people miss is that the aftermarket recovery point capacity is not dependent on the plate that the recovery points are made from, but how they are attached. You would need to be sure that:

1. The attaching bolt holes are designed for attaching recovery points and the load generated in recovery
2. That they are bolted flush to the chassis rail so that there is a full friction joint between the chassis and the plate
3. That the plates are torqued to full capacity of the attachment bolts, which are hopefully high tensile

If any of those things are missing then they are unsafe, it's not rocket science. If you want to see what can happen if the plates aren't properly attached, have a look at the video of the Ford Ranger chassis failure from incorrectly bolted towbar. It's similar, other than probably being a repetitive shock load of lots of cycles over a long time.

The loops may not look sexy but they do the job, and you can always paint them yellow or red which will no doubt double the capacity.

[gunda Member Find all posts View Profile Close gunda]

The loops may not look sexy but they do the job, and you can always paint them yellow or red which will no doubt double the capacity.

LOL!