tranny swap

A

Andrew T

NAXJA Forum User

Location

Houston, TX

• Sep 8, 2003

• #1

My aw4 is starting to act weird, and I think I'm just going to look for another tranny to swap in. This is my question... I know some grand cherokees come with a 5 spd auto. Can I swap this in instead of another aw4? What all would be involved?

Also, would this be a worthwhile swap for a trail rig? As of now this is my daily driver, but it won't be for long. Should I just keep the aw4?

Thanks,
Andrew

 

BrettM

NAXJA Forum User

Location

michifornia

• Sep 8, 2003

• #2

I'm pretty sure the ZJs (or WJs for that matter) never came with a 5 speed auto. I know there was the 46rh put in many of them, which is a tf727 (or was it a tf999?) with an overdrive. Still only a 4 speed.

The AW4 is a good tranny. I see absolutely no reason to ditch the AW4 for any other auto if you're keeping the 4.0 unless maybe you had your 4.0 stroked and supercharged.

 

CheapXJ

NAXJA Forum User

Location

570, 813 or 303

• Sep 8, 2003

• #3

the 5-speed auto only comes with the 4.7HO, and is a different bolt pattern.

you can either swap in another aw4 (which I HIGHLY doubt the tranny is at fault) or fix the electrocal issues which are probably causing your problems anyway.

3 things to check (87-90)

TPS
TV (kickdown) cable
tranny speed sensor

2 things to check (91+)

TPS
TV (kickdown) cable

 

R

RCP Phx

NAXJA Forum User

Location

Phoenix,Az

• Sep 8, 2003

• #4

Its still available with the 4.0 engine!

 

CheapXJ

NAXJA Forum User

Location

570, 813 or 303

• Sep 8, 2003

• #5

RCP Phx said:

Its still available with the 4.0 engine!

Click to expand...

huh... learn something new everyday :-D


it'd still be a bitch to adapt the electronics, and that electronic governor pressure simulation that they use to control shifting doesn't work very well, and is unreliable (that's for ALL the chrysler made Jeep transmissions, like used in the ZJ/WJ)

 

X

XJOFFROADER

NAXJA Forum User

Location

lompoc, CA

• Aug 28, 2010

• #6

idkhow you have a problem with it i got 175000 of the hardest miles youve seen on it and it still good as new

 

A

austinaubinoe

NAXJA Forum User

Location

Montgomery County, MD

• Aug 29, 2010

• #7

run a can of Trans Tune through it. My jeep was stalling out in reverse under load for MONTHS. now it runs perfectly. It unclogs all the valves and such.