well if so about the grizzley locker being same guts different caseing atleast it has a limited lifetime warrenty vs 1 year of eaton your right on the grizley not being stronger, its whole gimmick was it was machined in a way thatit wont break the engagement cups so you shouldnt ever break an axleshaft and take out the unit.. I never cared for a locker in a streetcar anyways worm/torsen gear unit is where its at for street/pro-tour tru-trac is pretty decent but would do allot better if it had built-in preload like the more expensive units like Wave-trac, S-Trac and Platnium track never knew us gear wentout just always seen them offered and was backordered the time I ended up ordering the performance motive set in like 08/09
