Ford Muscle Cars Tech Forum banner
1 - 1 of 1 Posts

· Registered
10,534 Posts
Ah, I missed when you originally posted. Yes, it should be a 3-groove, with one crank>alt>WP>crank and two parallel (matched pair and sold that way) from crank>WP>AC>crank. There was a mid-year change IIRC that used a smaller alt sheave (same diameter as your single was) and 2 larger AC sheaves on the crank to spin the AC faster, and it was routed direct, crank>AC>crank. If you still have your single-groove crank pulley, I'd be interested. I may have the later 3-groove AC crank pulley to trade if you still need it.

1 - 1 of 1 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.