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If you take them to a welder to have them welded up, a good welder will tell you if the metal is too fatigued or too rusty to reuse. My welder wouldn't even have to know what they were and he would give me that much information. He wouldn't even weld up crappy metal.
Experience; you can't buy it.
Thanks for the update, Denpo. The new(er) arms look great and look like they will provide a solid foundation to build on.
Just a slight tangent: why Johnny-joints for the trailing-arm pivot? I know they're used for links off-roading where you want maximum articulation and resistance to deflection. I would think the only motion you want in the trailing-arm pivot is in the vertical plane, with *resistance* to motion in any other plane?
Trailing arms move on two planes, vertical and horizontal. As the arm moves up and down it also moves out and back in. Add to that the rotational motion makes a joint or sperical bearing the best choice and poly being the worst.
Mike
Trailing arms move on two planes, vertical and horizontal. As the arm moves up and down it also moves out and back in. Add to that the rotational motion makes a joint or sperical bearing the best choice and poly being the worst.
Mike
Thanks Mike, you're saving me some time answering.
For the records, all the parts for the brakes rebuild have been provided by Mike. He has Good product and fair price
You can follow the entire restoration process here : http://forums.corvetteforum.com/c3-g...long-post.html
I haven't posted anything for weeks, but I should do an update in the upcoming days.
Trailing arms move on two planes, vertical and horizontal. As the arm moves up and down it also moves out and back in. Add to that the rotational motion makes a joint or sperical bearing the best choice and poly being the worst.
Mike
It's actually 3D motion, not just two planes but your analysis is correct as is conclusion that poly is the worst choice for this- and trailing arm bushings.