Trans ratios???
I'ts been a long time since I've had any options at all relating to transmission ratios. Back in the late 70's we had the first ever lower gear planetary set for a 727 torqueflite. In our B/SA Hemi Challenger. At the time we didn't see any difference. Didn't change anything else just the planetary gear.
Now I have an oportunity to get a lower first gear 2.84 (now 2.69) second gear is close to the same as I'm running now 1.57 (now 1.55) third is 1 to 1 on both but the lower gear tranny has an overdrive 4th gear 0.88. Both are automatics. The final drive ratio on the 4 speed is 4.10 to 1 (now 3.72 to 1) I figure I can run a taller tire with the 4 speed. This science is completely new to me. What is the general thought here? I'm running a basicilly low torque motor 151 cu inches in a fairly heavy car 2600# |
Re: Trans ratios???
Art, You have a PM
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