Thread: Speedometer
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Old 02-24-2008, 10:13 AM   #1 (permalink)
Pfiffle
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Join Date: Jul 2006
Posts: 106
Speedometer

I'm in the process of changing my open rear 2:41 axle to a 3:73 posi on my 76 Cutlass. The new axle will be an 8.5 10 bolt also. Anyway my speedometer will be way off, right? Is there a conversion chart or formula that I can use to correct it with regards to the speedometer gears/hardware? Thanks. Tom.
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