Hello Volvo lovers,

Several years ago, I found some 780 seats that were exactly like mine and in great shape so I bought them. An ensuing accident that totaled my car slowed but i found another with the same interior. So, I finally got around to installing them. Unfortunately, the seats had been robbed of the controls so I had a considerable job rewiring them. The passenger seat went well but the driver side required some work on a damaged harness (existing one was damaged also). Finally, I got it all set up and tried it out. Everything seemed to work properly except the forward/back movement. It moves from full forward back about 3" but no further. I cannot see anything hindering the movement. Since it moves some, I'm assuming it is not an electrical problem. My thought is the transmission type unit that contains the pinion gear. Would it be possible for this to work partially but not all the way? Does anyone have suggestions? Obviously, I have a lot of spare parts from the old seats. However, it's a bear to change out the transmissions (or whatever they are called) so I would like to isolate the problem first.

Thanks in advance for your wise suggestions!
Patrick