bigdman Posted January 30, 2006 Report Posted January 30, 2006 is the underdrive pulley from a 3100 the same size as a 3.1? Quote
TeeJay3800 Posted January 30, 2006 Report Posted January 30, 2006 They are different parts that mount differently and are not interchangeable, but both FFP pulleys are of the same diameter. Quote
dbtk2 Posted January 30, 2006 Report Posted January 30, 2006 is the underdrive pulley from a 3100 the same size as a 3.1? 3.1 and 3100 pulleys from FFP are identical. They are both 18% or 19%underdrive IIRC and they CAN be interchanged. Shawn Quote
TeeJay3800 Posted January 30, 2006 Report Posted January 30, 2006 Yeah they are, my bad. I was going off this pic and at a glance they looked different. http://www.fastfwdperformance.com/images/products/udp/ud-3-big.jpg Quote
digitaloutsider Posted January 30, 2006 Report Posted January 30, 2006 2.8/3.1/3100/3400 are all interchangable (FFP). Quote
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