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How are most measuring rear caster?

Searched and everyone seems to talk about the front but not rear. Installed a new lower control arm on the right rear and want to make sure everything is as it should be.

Want to make sure I don't have to many threads showing on the clevis bolt. Does the heim joint rule apply to it as well?

Have used a caster gauge on the upper ball joint bracket. You need to make sure it is straight and try to do it near the upright arms. There is a picture here:
http://www.kangamotorsports.com/car-setup/

I think it is the 7th picture in on the group. You can click the thumbnail and it should come up. Otherwise PM me your email and Ill send you a few photos I have.

Since the rears don't steer, I think the actual measurement is less important than finding the position that gives you the appropriate bump steer adjustment range using the toe link shims.

here is a close up of one approach
[url][URL=http://s71.photobucket.com/user/stevekramer/media/005b.jpg.html][/url][/url]

Thanks for the advice. Should be good now.