Looks like I have a good find on a disc brake rear axle assembly for our POS-7. Any one swapped out a drum rear to a disc rear on a first gen? Any trouble spots beyond R&R? I need to do a bit of research on the existing braking system to see what else needs to be changed (proportioning valve, hard/soft lines and such). Just wanting to see if there is some knowledge to be gained before I start on the project. Thanks!