M35A2
TJ Enthusiast
I just used two 4' carpenter levels clamped to the hubs and marked at the proper distance to simulate the tire diameter.One thing I didn’t see anybody mention in this thread; make sure the stock you buy is straight. Don’t assume they are straight. Eyeball them, or go grab a level off of the shelf.
I bought mine at Lowe’s. I found two pieces of 3 foot aluminum angle, out of a dozen, that were straight to the naked eye. The rest were all warped to some degree. The square tube and c-channel they had was even worse.