Shifting problems
Shifting problems
Im having a hard time getting my truck into some gears, i took it in and now i cant get it into 1st gear, i cant find new or even used parts. Dose anybody know how i can fix this or possibly a place to find some parts. I have an 89 1st gen cummins.
Well if the automatic aint going into gear, then that's a bad thing.
Sounds like it's a rebuild time for your tranny. I'm not sure but did the early 89/90's still run the 727 with a lock up converter? Or did they have the 518od unit already?
Regardless both tranny's are rebuildable, lots of parts out there, so don't worry about that.

Sounds like it's a rebuild time for your tranny. I'm not sure but did the early 89/90's still run the 727 with a lock up converter? Or did they have the 518od unit already?
Regardless both tranny's are rebuildable, lots of parts out there, so don't worry about that.
The 89-90's had a TF-727 with a NON-lockup converter, so did the A-518s. I would check your linkages and make sure that there isn't any binding, and that the bushings are all good. Before that though, I would disconnect the linkage at the transmission, and make sure that the problem is not internal, by manually moving the shift arm with your hand from under the truck.
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Well if the automatic aint going into gear, then that's a bad thing.
Sounds like it's a rebuild time for your tranny. I'm not sure but did the early 89/90's still run the 727 with a lock up converter? Or did they have the 518od unit already?
Regardless both tranny's are rebuildable, lots of parts out there, so don't worry about that.

Sounds like it's a rebuild time for your tranny. I'm not sure but did the early 89/90's still run the 727 with a lock up converter? Or did they have the 518od unit already?
Regardless both tranny's are rebuildable, lots of parts out there, so don't worry about that.
If the tranny shop you went to tells you that parts for a 727 are not available I would find a new tranny shop. The only part that might be a little hard to come by is the case cause it is diesel only. But I your case should be reusable. But other than that parts are readily available for that.
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Brendan
24 Valve Engine and Drivetrain
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Oct 17, 2007 11:12 AM







