friend of mine had a whole mess of problems with this same style/brand valve body in a c4 he called them talked to them many times finally he told them he was so upset with it and they gave him a deal on a new one and he sent the old one to em... then we had to change the linkages in the transmission to find which one worked the best and was right even had to modify hit gate plate on his shifter cause the the linkage that was the right one wouldnt let it come all the way back in to first gear so had to file the gate plate for the shifter to move back farther...... that was the only way to fix it cause once u adjusted cable to make it go in to first gear it would go all the way in to park and vice versa... linkage seemed to be made alil to big or something.....hope this helps...