Recently I had the opportunity to witness the step-by-step rebuilding of a GM 12-bolt rearend by one of SoCal's premier differential shops, Diff Works in Riverside, California, and the experience ...

Today's racer/restorer can now order a complete, fully assembled 12-bolt "crate axle" from Moser ... is to tackle the task of rebuilding and upgrading a blown-up Chevy 12-bolt.

but not everyone wants Ford-style parts on their Chevy. So for all the purists out there, we are going to rebuild a 12-bolt with stronger than stock parts and add a new limited slip differential.