Just posting this for anyone who is interested. This past September I did the right side (as your sitting in seat) drive motor on my 40xt and did not have to remove pump. I did have to remove all hoses and fittings on that side of pump and remove bolts from motor mounts to slide engine and pump over the 1" we needed to get the motor flange to pass through and out. You could probably do the same with the left side motor but you have to get motor unbolted and slide under pump and over to the right side to get it out. On my machine the key was removing the motor mount bolts. It is a 2 man job and believe it or not we R & R'd motor and had the tires back on in 4 hours. Last picture is the heartbreak you feel when you remove any bolt on chain case cover that is above fill plug and see this!
Yep, they are a bitch to get out. 2 men and a strap.