In the year range that you have listed, you won't find a 4 speed auto. They started putting in a 4 speed (42rle) in '03. Can't help you with the RPM number, sorry.redbeard said:
3 speed automatic?
hey...im new to jeeps (getting ready to buy my first). im definitely getting a 4.0 but i noticed one that i was looking at recently had a 3 speed automatic. my biggest concern is what kind of rpm's am i gonna be running at 70 mph? and will it have any bearing on the power output? do they make a 4 speed automatic or just the 3 speed? as far as the year model, im looking at 97-02. thanks a lot.
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Depends on what size tires you will be running. The 3 speed (32RH) with 35's and 3.73 gearing runs just about 2800 at that speed.
It's a good little tranny that seems to hold up to the riggers of wheelin.
It's a good little tranny that seems to hold up to the riggers of wheelin.
It's a durable yet unrefined transmission. It's third gear is a 1:1 so there is no overdrive. It's very dependable and will last a long time, since it's basic design is from the 70's. It also winds the motor at hwy speeds so it'll suffer some mpg. You dont want the dana 35 rear axle with 3.07 gears, you want a dana44 rear axle with 3.73 gears cause you'll need the higher gears when you get bigger tires. Easiest way to tell is look at the fill plug and the diff tag. The D35 is a rubber plug, the D44 is metal, and the tag should say 3.73.
actually you'll need lower gears when you get bigger tires (although the actual number will be higher)Hamster said:It's a durable yet unrefined transmission. It's third gear is a 1:1 so there is no overdrive. It's very dependable and will last a long time, since it's basic design is from the 70's. It also winds the motor at hwy speeds so it'll suffer some mpg. You dont want the dana 35 rear axle with 3.07 gears, you want a dana44 rear axle with 3.73 gears cause you'll need the higher gears when you get bigger tires. Easiest way to tell is look at the fill plug and the diff tag. The D35 is a rubber plug, the D44 is metal, and the tag should say 3.73.
Sorry yea your right, I was thinking and saying two different things.
thanks a lot for the help guys...i ended up getting a 2000 with a 5 speed manual and the 4 liter 6 cyl
Congrats on the purchase.redbeard said:thanks a lot for the help guys...i ended up getting a 2000 with a 5 speed manual and the 4 liter 6 cyl
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