How to adjust tranny bands?

[Sfrid073]

I have a 2001 GC 6 cyl, automatic, 82000 miles. Running fine. Never had the tranny serviced yet. Was going to change fluid and filter. Are there bands that need adjusting? And how do I do that?

[Off_Road]

Posted by Sfrid073 - 12-03-2004 at 06:00 PMI have a 2001 GC 6 cyl, automatic, 82000 miles. Running fine. Never had the tranny serviced yet. Was going to change fluid and filter. Are there bands that need adjusting? And how do I do that?

Yes there are two bands. The one toward the rear of the trans is called the low-reverse band. Applied in manual low and also in reverse. The other band, more toward the front of the trans is called the intermediate band. Applied in second gear only. On some models also called the 2-4 band. Applied in second and forth gear. There are lock down nuts and servo pins for both bands. On the rear band or low-reverse band I know the lock down nut is located inside the pan, near the back of the filter. Much easier to see once you've removed the three filter screws. The front band or intermediate band lock down nut I believe is located on the outside of the transmission case, just above the linkage on the driver's side. I'm not sure what the exact specs are for either band. I always adjusted them by hand, after doing so many over the years you get a feel for how the adjustment should be. I really recommend that you find out what the specs are and go from there. I found that many times there was not even the need to make a band adjustment (current adjustment would be well within specs). The following info take at your own risk (lol disclaimer). For the rear band/low reverse I would loosen the lock down nut. Then turn clock-wise to tighten the servo apply pin in order to tighten down the band against the drum. Not crank down tight, just snug tight. Reach up and move the band slightly before any adjustments to get an idea of how loose the band should be. So tighten down the apply pin just to the point it's snug (maybe a full turn or so past finger tight. If you were to reach up then you won't feel movement in the band. Then I would back off the servo apply pin about 3 full turns. Hold the apply pin then to make sure it doesn't move and then lock down the nut. The front band is adjusted in about the same way except only back off about 1 1/2 turns. Maybe 2, depending on how tight you tightened the band. In the case of the front/intermediate band it won't be the servo apply side that your dealing with. But it will also have a anchor pin and nut just the same. But in this case the anchor pin will be attached to the front band strut, not the servo. The specs that you need will actually be the ft/lbs or I should say inch/lbs of torque Chrysler recommends to tighten up on each band before backing off.

Good luck, sorry I can't be of more help.

[Off_Road]

Hey Sfrid073,

I did a little researching and found this. I'm not sure if this is the model transmission that you have? Maybe you can check and find out. But apparently these are the specs for the 46RE auto trans. I would still check to verify this information.

The front band - torque to 72 IN/LBS, back off 2 and 7/8 turns. The rear -torque to 72 IN/LBS and back off 2 turns. Just remember INCH pounds!

I would have sworn the back off was opposite more on rear band, less on front then what this says. But then again it's been a few years since I was bending wrenches. I figured after 20 years I had enough. Sorry if I have you totally confused now. Just trying to help.