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Speedy Squirrel Speedy Squirrel is offline
Rocket Scientist
Join Date: Jun 2008
Location: Detroit
Posts: 938
Do you still have whats left of the pulley? If so, you can wrap the new belt around that and measure the pitch directly.

The early cars had the two belt system. The later cars don't use the idler pulleys, and have only one belt.

Here is a link that explains it with pics:

Keep your 1976 in one piece. Spare no expense. It is going to be worth a lot of money real soon....
Old 06-09-2013, 06:16 AM
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