Jack the rear up and put on jack stands. Put car in neutral. Get under car and turn rear tire one revolution and count how many times the d-shaft rotates compared to one wheel rev. IE my shaft spin 3.5 times compared to tire. = 3.55 rear gears.
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87 GT Converted to LX.
GT-40 Heads
TFS1 Cam
Edelbrock RPM Air Gap Manifold
600 Holley Double Pumper
BBK Shorties
BBK OR H Pipe
Mac Pro Dumps
5 Speed 3.55 Gears
351W in the works.......
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