I had the PTO Gearbox on my Walker MT 26EFI go out on me the other day. Dealer had one in stock,($308) and said it should only take a couple hrs to replace, so decided to save time I would have him install it. I carried mower into the shop at 12:30PM, expecting to have it ready by at least 5:00PM so I could at least finish a couple yards that evening. Yea right....... 10:30 the next morning I was able to load mower on trailer. Needless to say I was a little PO'ed. What really gets to me is the 4hrs labor @ $60 an hour $240), that I was charged. I think that is a little out of line. I know that Walker is not the easiest mower to work on due to the cramped space in the engine compartment, but the darn thing only has 4 bolts holding it on. I want to complain to Walker about the 4hrs., but want to find out about how long it takes to replace that gearbox. So my question to you Walker owners, has any one else had to have one replaced, and how long did it take? Or does 4 hours sound right? Thanks.