Hey guys. New to the forum but thanks in advance for any help. 1997 K3500 6.5. Just put a new reman 4L80E in and found out that the shifter shaft isnt long enough for my MLPS. Ok so I need to swap the shafts. The bigger problem is that when I manually shift the trans from under the truck I cannot get any reverse. The big round plug is plugged in and everything Ive read seems to me the MLPS not being present wont effect this. Im lost. Only other difference is the new trans has two speed sonsors instead of one. Thanks for any help here.