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Originally Posted by YNOBIL

My 72 GTO 3spd manual had a 2 piece cable when I bought it new. 3 speed sticks didn't have a switch built into the trans to operate the distributor vacuum advance like the 4speeds did. They used a speed sensor between the 2 spedometer cables to operate the advance.
The lower cable on mine would break every 10,000 miles, after 2 times I went to the dealer and bought a 1970 1 piece unit and never had another break.

Bill Nawrot
Countryside, IL

I'm thinking the 3 speed and the 4 speed cables are different. 3 speed in 1970 should have speedo hooking up on the passenger side of the tail housing. 4 speed in 1970 was driver's side.

Scott