My T-5 has the elcetronic speedo. It's a WC and came out of a Camaro. I took the mechanical speedo out of my 3 speed and compared it to the electronic one. They both had the same number of teeth, and the mechanical one fit into the T-5. The only difference would be the metal tang that holds it in place. I think there was a difference in length. It would be an easy fix.

BTW: I have not run the T-5 yet, so I'm not 100% sure. Good luck. John


1968 Chevy C-10, 250 and 3 speed on floor, Hedman headers, Offy intake, Edelbrock 600cfm 4 barrel, HEI
1966 Chevy C-10, motor and tranny went into the '68. Waiting to be restored.