Originally Posted by CossieRich
Does welding the make them any stronger? As in a standard 2wd diff asking to cope with 400 bhp. Would welding whatver it is that gets welded help prevent failure?
absolutely, but depends on diff type.
the small gears inside are what normally break on cossie rear diffs, and these get welded together and plated over making in effect a solid centre with the only points left to break being the crownwheel or pinion