Originally Posted by MH60M
So.....are there any concerns with running previously enjoyed gears? The 98-04 Grand cherokee came with 3:73 Dana/Spicer 44HD w-7/16 Bolts. Can I bypass the heat/cycle and break-in process by utilizing used factory gears?
The carrier and gears are the same for Viper, ZJ/WJ (rear) and Corvette. At least that's what I read when I built my 3.55. I would have no issues with used gears IF the wear pattern looked good and they weren't purple burnt or anything. No break in required as far as I'm concerned.