Eric, could you conduct an informal poll at nationals?
Q1 - "Is anyone running a 5th from a turbo or 944s, and if you are, did you burn out the bearings?" "
Q2 - "If you did, was it an early or late transmission" (speed sensor or no)?

I will try and remember to take a poll for you, kurt.

I have tried installing the short fifth from my turbo and once installed, the trans is locked in fourth gear. When you upgrade, are you only changing the two bottom gears or the whole top gear group?

You're changing all the parts in the picture I posted a few posts up - for me it's on page 2. Since you have yours apart, or it sounds like you'll be disassembling it again, can you look inside the "shifting gears" and confirm the turbo is different, there's no oil groove or oil holes?
Thanks.

I changed the "whole" group and followed the write up, but there is something that I am doing that is causing it to lock up in fourth gear. When I mean lock up, once I finish reassembling it is stuck in fourth gear. I am planning on disassembling this weekend. I will make a point to take pictures.

When the transmission is disassembled it's possible to move the 3-4 synchro hub too far, and those 3 little tabs will jump out of place, making it impossible to move the synchro hub back again. I hope that isn't what happened.