Is there a mechanical reason why double washers are used in assembly, I sorta get that to make a 1/4 clearance one could use two 1/8 washers, but is there some frictional reason why two are used?
Where are you seeing this?
Ive seen it a few places, but my brain farted memory has escaped me on the previous locations. The inquiry was about the double washers that hold the nuts to the hub retainer/carrier in the IRS.
There are bout 2 zillion opinions about preload and how to accomplish.
I’ve got mangled hold down brackets, where my largest vice was defeated,in attempting to bend correct, hard to do, stuff is hard. Wonder what levels of towing abuse got it this way. I digress. The hub carrier is secured to each wishbone, by a shaft which in my case has two washers, about 1/8 in thick apiece which are used for? We have the hold down bracket, secured by a nut, lol, and on the other side, washer, onto the shaft, with two “pivot shim” washers. IDK took the hold down bracket off to replace and find two washers, just wondered why?
Cannot help ya there, not having seen that set-up in decades.