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Thread: Rear end gear?
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08-09-2015 #5
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- Join Date
- Jul 2005
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- Portland, OR
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Just a few what ifs:
with the 2.48 TH 400 1st gear and a 3.08 - 1st gear max speed about 53mph , 2nd about 89 mph and top speed at 5500 is 132. Cruise is about 2500 RPM at 60 and 2900 at 70
with the 2.48 TH 400 1st gear and a 3.42 1st gear max speed about 48, 2nd about 80 and top speed is 119. Cruise at 60 is 2750 rpm and is about 3200 at 70.
If you change the first gear planetary set in the TH 400 to a 2.75 / 1.57 and go with the 3.08, 1st gear max speed is about 48, 2nd is 84 and top speed is still 132. Cruise stays the same. You'd get a little more leverage against the car's weight in first and second and still have a decent cruise rpm.Last edited by 4mul8ion; 08-09-2015 at 12:23 PM. Reason: corrected 2nd gear speed with 3.42 gear
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