Factory specs wrong?
#1
05-26-2011, 02:45 AM
Join Date: Oct 2010
Location: Big Rapids, MI
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Factory specs wrong?
Ok, I have been doing a LOT of reading on here in preparation for my tranny service. One thing I have discovered is that there seems to be some differing opinions of the specs for the band adjustments.
According to the FSM, the front band should be backed off 2 7/8 turns once you torque it to 72 in. lbs.
Now I also read that the Haynes manual says something different, and that the FSM is wrong.
I am REALLY interested in getting this right, as I don't want to have to replace my trans because I FUBAR'ed it.
Any help would be much appreciated. Thanks.
According to the FSM, the front band should be backed off 2 7/8 turns once you torque it to 72 in. lbs.
Now I also read that the Haynes manual says something different, and that the FSM is wrong.
I am REALLY interested in getting this right, as I don't want to have to replace my trans because I FUBAR'ed it.
Any help would be much appreciated. Thanks.
#2
05-26-2011, 05:23 AM
Veteran
#3
05-26-2011, 05:55 AM
72 inch lbs is a correct torque for both bands,and backing off 2 and a half turns and locking the jamb nuts works too. You will notice downshifts afterward,but honestly,you really don't need to adjust the rear band,and as long as you don't feel a mushy 2nd gear,the front band is probably fine as well.
#5
05-26-2011, 09:41 AM
#6
05-26-2011, 09:52 AM
Join Date: Oct 2010
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Thanks for the replies. I have read most of Montec's trans thread, and haven't seen anything yet about specs for the band adjustments. I will have to read further, I guess.
I'm betting if I called the dealership or a trans shop that neither one would be willing to let that kind of info go. It would be cutting into their profits.
I'm betting if I called the dealership or a trans shop that neither one would be willing to let that kind of info go. It would be cutting into their profits.
#7
05-26-2011, 10:07 AM
Depends on the dealership. I go up to the GM dealership on a regular basis, and make use of their library.... but, they know me from long ago, when I worked at an independent shop that they cooperated with. (we did a fair bit of their exhaust work, and they did our front end alignment work.....) Even though I haven't worked in the field for years, they are still pretty friendly.
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#8
05-26-2011, 10:12 AM
#9
05-26-2011, 10:27 AM
Depends on the dealership. I go up to the GM dealership on a regular basis, and make use of their library.... but, they know me from long ago, when I worked at an independent shop that they cooperated with. (we did a fair bit of their exhaust work, and they did our front end alignment work.....) Even though I haven't worked in the field for years, they are still pretty friendly.
lol