[Ski-me]

I removed the tailshaft from a 90-91 blazer t-case, as well as the toning ring and wires that lead up to the DRAC unit. Then I reinstalled on my 89 (removed cable driven unit) and then re-pinned my instrument cluster. I have a detailed write-up on the swap and it worked out great! From the DRAC, you can send the pulse to the EGM for fuel injection, abs, etc.......

There was even a pin difference from the 89 to the 90-91 era so your's will need to be changed.