[Bob In Ct]

My SPF has a 3.73 with a 0.68 OD, it's great on the highway. 1,900 RPM at 60MPH. If I were to do it over again, I would go 3.46 (or taller), with the 0.82. That would result in the same spread between all gears, and still let the engine loaf on the interstates.

Bob