Thread: Anybody go from 3:55 rear gear to 3:08?
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Old 11-30-2020, 01:30 PM
Jim Vander Wal Jim Vander Wal is offline
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Join Date: Sep 2002
Location: Grand Rapids, MI
Cobra Make, Engine: FFR Challenge Car, RDI aluminum 427w
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In SPF1855 I went from 3.73 to 3.27 with the .64OD. SBF 427 530+ HP/TQE.
I liked it a lot. 2,200 at 80mph. 315/35-17

The 3.08s and .82OD should be similar at 80mph but won't have the snap in 1st-4th.

Jim
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