Reply to "3.44 pinion"

kirkevansAmeriSport GT5-S builder Pantera Parts Vendor

What is your R-tire DIA? 4.22 is correct--3.44 is quite high. Is your goal to drop the 5th highway RPM?

Something was not adding up so I went to the RBT configurator and took a look. I plugged in the dot on the top that said Pantera and 3.78 came up---WTF? Took a closer look and realized the dot was to the left of Pantera and was for the GT40 so I moved the dot to the right of Pantera and it corrected to 4.22.

That may have happened to you also. Try plugging in a 6.2 fifth and see how it looks. The only down side of the high fifth is it adds load to your 4th-5th thrust washer but it's an easer change than a ring and pinion set-up.

I can do a 5th change in a day or 2 max depending upon cleaning time---about 3 to 4 hours drive time from you.

11/22/165:49 AM

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