What do you mean by not shifting into reverse? Is the linkage moving it into reverse but veh dose not move? When it comes to a 700r4 and even the fully electronic 4L600-E , it works the same, another words when you shift into rev or forward at a dead stop from park it is completely controlled by the manual valve and is completely hydraulic. Now basically reverse and third gear are basically the same elements is the trans making the same gear. Reverse and third are 1 to1 . direct drive. So usually if you have no manual reverse that is usually the sun shell is broken. But then it will move in forward gears until it shifts to 3 rd then nothing.
If it wouldn't move forward or reverse, that would lead me to believe the convertor spline stripped. In 82 they had a 28 spline converter shaft aand the broke all the time. that is why they went to the 31 spline.
-
-
I still need more info, so if you feel like it email me at tjmorris7332@gmail.com and i will help you get through this. i was a master transmission builder for AAMCO, and now I just do racing and street rods. but i will help you.
What do you mean by not shifting into reverse? Is the linkage moving it into reverse but veh dose not move? When it comes to a 700r4 and even the fully electronic 4L600-E , it works the same, another words when you shift into rev or forward at a dead stop from park it is completely controlled by the manual valve and is completely hydraulic. Now basically reverse and third gear are basically the same elements is the trans making the same gear. Reverse and third are 1 to1 . direct drive. So usually if you have no manual reverse that is usually the sun shell is broken. But then it will move in forward gears until it shifts to 3 rd then nothing.
If it wouldn't move forward or reverse, that would lead me to believe the convertor spline stripped. In 82 they had a 28 spline converter shaft aand the broke all the time. that is why they went to the 31 spline.
I still need more info, so if you feel like it email me at tjmorris7332@gmail.com and i will help you get through this. i was a master transmission builder for AAMCO, and now I just do racing and street rods. but i will help you.