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AL4D Slipping, all gears.


Duncan

Member
Joined
Aug 22, 2008
Messages
9
City
Eastern Oregon
Vehicle Year
1987
Transmission
Automatic
It slips in all gears. No other problems. What might this cost me at a repair shop? Anyone know? And also, if those are the only symptoms, is it reasonable to ask what the cause might be?
 
You may want to try a filter and oil change and also look at whats inside the pan like clutch dust and what not.

For me to rebuild it would be some where around 1200-1400 bucks depending on hard parts needed, thats removing trans rebuilding it and putting it back in and of coarse on 4x4's i reseal the transfer case also. Most shops get around 1600- 1800 around here in the part of Missouri that i live.
 
For me to rebuild it would be some where around 1200-1400 bucks depending on hard parts needed, thats removing trans rebuilding it and putting it back in and of coarse on 4x4's i reseal the transfer case also. Most shops get around 1600- 1800 around here in the part of Missouri that i live.[/QUOTE]

Hmmm... Any suggestions as far as alternatives go? Buy a rebuilt one from them? Ive no intrerest in visiting the u-pull-it and/or doing any real mechanical work myself, although I can, but at this point in my life, Ive no need.

Once I do the fluid and filter change, and if it remains the same, any chance this could simply be a case of needing the bands tightened...? (as if I know what that is... LOL)

Im just getting a feel for its wallet lightening effects. I wouldnt mind buying a waranteed rebuilt one. What is the cost in compare to having mine rebuilt? Thank you so much for your time and patients. This BII is truly a gem with an honest 88k on it, with not a mark on the interior.

Thanks.

:icon_bounceblue:
 
You could adjust the bands before the filter and fluid change. They are on the drivers side of the trans. You will need a special socket and an Inch pound torque wrench to do it. The adjustes need to be backed out to 10 inch/lbs and tighten the jamb nuts up when done. Notice I said backed out, those are connected to the bands and tighten when you back them out. You have never said what color is the fluid and what does it smell like?
 
You could adjust the bands before the filter and fluid change. They are on the drivers side of the trans. You will need a special socket and an Inch pound torque wrench to do it. The adjustes need to be backed out to 10 inch/lbs and tighten the jamb nuts up when done. Notice I said backed out, those are connected to the bands and tighten when you back them out. You have never said what color is the fluid and what does it smell like?

The fluid is red. But just barely. Not very red at all... No odd or burnt smell I can tell. The slippage doesnt worsen with driving, so maybe I can assume its not an overheating issue? Thanks for the adjusting advice.

So, loosen the jamb nuts. Adjust (back out) to the torque of 10 inch/lbs. Re-tighten jamb nuts. As I mentioned, other than for the consistent slippage, there are no other issues. So it sounds like Im on the right track eh? Thanks for your responces guys. Anymore advice?
 
You could adjust the bands before the filter and fluid change. They are on the drivers side of the trans. You will need a special socket and an Inch pound torque wrench to do it. The adjustes need to be backed out to 10 inch/lbs and tighten the jamb nuts up when done. Notice I said backed out, those are connected to the bands and tighten when you back them out. You have never said what color is the fluid and what does it smell like?


Ummm if you back the center screw out you are backing off the band...

Loosen the lock nut and turn the center screw in till it snugs up (about 10 foot pounds)and back center screw out 1 1/2 turns..adjust both bands this way and be sure
to tighten locknut. I believe a 3/8 12point socket will fit the center screw and the lock nut is 3/4 or19mm.
 
Ummm if you back the center screw out you are backing off the band...

Loosen the lock nut and turn the center screw in till it snugs up (about 10 foot pounds)and back center screw out 1 1/2 turns..adjust both bands this way and be sure
to tighten locknut. I believe a 3/8 12point socket will fit the center screw and the lock nut is 3/4 or19mm.

No you are tightening the band. Think about what it is.....it's a band that is
pinned to the inside of a drum. Ususally the nut is a two sided flat.
 
Last edited:
Here is some reading for you also. The vacuum modulator I would check first. Pull the vacuum line off and see if it is leaking. If it is leaking then replace it. But it has nothing to do with the transmission slipping it is more for the shifting of the trans.

http://www.technicalevolution.com/band.htm
 
Here is some reading for you also. The vacuum modulator I would check first. Pull the vacuum line off and see if it is leaking. If it is leaking then replace it. But it has nothing to do with the transmission slipping it is more for the shifting of the trans.

http://www.technicalevolution.com/band.htm


Thanks guys, your advice is invaluable. Whats the concensous (sp?) on the direction to tighten the band bolts. Out?

Thanks for your input.
 
Thanks guys, your advice is invaluable. Whats the concensous (sp?) on the direction to tighten the band bolts. Out?

Thanks for your input.

I guess I could have visited the link you posted before asking that question huh? Thanks again. :beer:
 

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