I had picked up this tractor cheap with a bad engine and just got finished re-powering it. I dont have the 917 # handy, but its an Lt1000 17hp with a Hydro Gear 322-0510. The problem is that it barely goes in reverse, and when you are going forward, you have to push the lever all the way for it to move, and its not moving that fast. When I first got it running it wouldnt move either way no mastter how far the lever was moved. I did the purging procedure outlined in the manual and it moves now, but if you go up the slightest incline, the tractor either comes to a stop or slowly climbs up it. Reverse seems to work when it wants to. Is this one of those un-serviceable axles, or can I actually check/add fluid to it? What type of oil does it use? Thanks!