Several years ago, I copied some instructions provided to the question about removing the power gear slide motor on a 99 HR Endeavor 37 WDS. These instructions were provided on the Rambling Pushers yahoo site. I have no idea if they will help, but they are provided below:
The instructions are:
On the shaft that the motor drives you will see some allen head set screws on a collar ,loosen those set screws take a hammer and punch and slide the collars down , now loosen the big jam nuts that are on the shaft , remove the mounting bolts that hold the motor and gear box in place and slide the assembly out , to reinstall reverse the procedure Ive done this a couple of times on Endeavors its really not that hard to do . Eric 94 Nav.
Good luck and let us know how your repair goes.
Fred & Vicki
Richmond Hill, Ga
2000 H.R.Endeavor/Freightliner/330 Cat