I am running a USDM ITR trans with a 4.78 fd. I love the gear ratios, but the dirt track I run at does not permit the use of lsds. I have a gsr open diff from a few years ago. Will the gsr open diff fit into my itr trans?

 

yes, might have to change the bearings if they are tapered, then check shim clearance.

 

Thank you!