Hi. I just took the motor off my DE-40 last week. First, take the motor brake assembly apart (it should be obvious, it is bolted to the cart frame). Make sure the cart is on flat ground, and the parking brake is off. Next, slide the brake assembly off of the disc rotor. You may take the brake disc off the motor, but it is not necessary. Next, there are two bolts on the motor housing that is bolted to the differential. You will need to remove these, but mark the motor housing so that you will remember how the motor body lines up with the rear end bell (housing). Once those two bolts are removed, tap the motor body with a rubber mallet in the direction of the front of the cart (I hit the disc brake rotor fairly lightly and the motor body came apart from the rear end bell pretty easy). You should now be able to slide the motor body with the disc brake rotor assemble off the differential shaft. Be careful because it is pretty heavy. You may have to wiggle it a bit, and work it a little if you left the brake disc on. The housing is bolted to the differential with three or four bolts that should now be visible. Good luck.