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Author Topic: Jeep automatic transmissions  (Read 695 times)

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Offline mrbeggins

  • Budget Lift
  • Posts: 121
Jeep automatic transmissions
« on: October 11, 2007, 02:37:47 PM »
Can anyone tell me if the automatic transmissions that are hooked up to late 80's and early 90's 4.0l and 4.0l HO's are any good. Also, what is the number of the tranny. Any particular one to stay away from? Putting a 4.0l HO in an 87' YJ and am thinking of putting in an auto instead of a manual.
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Offline cablesmurf

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  • Relapsed Jeep Addict
Jeep automatic transmissions
« Reply #1 on: October 11, 2007, 06:07:02 PM »
Yes they are good...AW4 auto tranny. Stay far away from the 42R and 42RE that came in the Grands. They are problematic. Get one from a 91 and newer XJ and you'll be fine. You'll have to do a little work to get it to mate up, but it is do-able.
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Offline calltrex

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Jeep automatic transmissions
« Reply #2 on: October 11, 2007, 06:18:00 PM »
the 999s are good but only 3 speed
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Offline mrbeggins

  • Budget Lift
  • Posts: 121
auto trannys
« Reply #3 on: October 11, 2007, 08:54:13 PM »
ok, - thanks for the info guys.
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