A for sure ID of a World Class is the front bearing,it's machined around the edges.NWC looks like a core plug.

I've had a few T-5's around,all the ones that came from a 2.8 Camaro seemed to be a 4.03 first gear ratio.In my opinion far too low for most inline applications unless you have a small high winding engine.2.8 S10 versions are usually a 3.76 first gear.


70 Triumph 650 cc ECTA current record holder