These work if you have a leaf spring setup on a scale truck and the driveshafts have a steep angle. I think it would keep the little u joints from wearing out prematurely.
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Walter Bawroski from Timonium , MD United States
June 13, 2015
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rc3wd alignment shim
The description from rc3wd would lead you to believe that you have to choose which wedges that you want, however the package actually contains 2 of every wedge.
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Eric from Fremont, CA
October 8, 2013
shims
I put these shims on my Trailfinder 2 to solve a pinion angle problem. Shims look and work as advertised. Good product.
