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Author Topic:   auto trans
Dirt Newbie

Total posts: 1
posted February 11, 2002 05:29 AM
what kind of rear gear should I run with an automatic on a 1/2 mile, and should it be 350th or 400th


Dirt Full Roller

Total posts: 69
posted February 11, 2002 07:40 AM
A powerglide is a much better choice but if you have to run a 3 speed the 350 is alot lighter ratios are 1st 2.52:1 2nd 1.52-1 multiply this by your rearend ratio to get final ratio you should be somewhere in the low 6.00 to the high 5.00 range

Dirt Forum Champ
Total posts: 1565
posted February 11, 2002 10:36 AM UIN: 54865418
what rear end do you run? what are you going to run for tire roll i run a t350 in 2nd gear 3.23 rear end gear with 81-82in tires i have also ran a 3.08 rear with 79-80in tires and turn right @6000rpm

Dirt Freak

Total posts: 430
posted February 13, 2002 11:46 AM
If your choices are between a th400 and a th350 go for the 350 is much better than the 400.

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