When you weld it, you will loose some turnability. Also, hardened gears will shatter months after hard use (rock crawlin) The detroit locker will unlock on corners, it will help. I broke 2 rear, then locked it. Then broke countless shafts, ujoints, twisted yokes at the rear. If you notice, I have 9.00x16 ndt's on my mutt. lifted 2 inches, and added x-0 skeleton on front. Mutt also got the Sami transfercase installed in it, this gave it creaper gearing, also the more torque that probally kept breaking stuff. You might be allright if you keep your 7.00x16's on it (welding gears) preheat gears to 400, fill in, reheat and let cool (wraped in insulation)