It 91 bronco 5.0L with AOD. Gear is 3.55 and tires is 31X10.50X15

AOD's 4 gear is 0.67:1

what speed that at 2,000 rpm ?

Well I am nervous about have AOD. I am think change back to C6.

Gear is 3.55 and C6's 3 gear is 1:1

What rpm would it be if cruise 70 mph? Then what about gear 3.31 with 1:1 what rpm would it be if cruise 70?

 

At 2000rpm with .67 OD would be about 75mph.

1850 rpm with .67 OD at 70.

2550 rpm with 1:1 C6 and 3.31 ratio.

All figured with a 31" tire height.

 

2,550 rpm for 3.31 gear ratio? WOW that worst than I thought. Until you mean it for 3.55.


Look like in summer we be rebuilt AOD to be tough with upgrade parts and pray that it would last plow snow, tow trailer that mostly 5,000-8,000 pounds, and drive in wood.

 

You can go here and plug in your numbers:
http://wahiduddin.net/calc/calc_speed_rpm.htm

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