Why I needed this pump? My tank and motor are still good (just finished rebuilding motor bearings and cleaning armature.) The pump was getting loud and when I went to remove the flywheel... crack! Oh well it has served me well over the last 16 years or so! Also, they had a new flywheel ($89) and a rebuild kit is around $24 (however there are no bearings in the kit, which I suspect is the reason for the increase in noise...) This new pump is $94 (1/7/25) and comes with the flywheel. I read the holes don't line up and my old husky 60 gal pump was no different! Do I recommend this pump? There were a lot of parts to this puzzle. The mounting holes didn't line up, the flywheel was a bit different (no flywheel key/friction fit) causing a need for a longer belt, the discharge tube connector was different, needing a few new adapters and a rebend of the original tubing. And finally the drain plug is directly over the mounting bracket and would prevent recovery of the old oil! Good price but a bit of work to get it functional! What did it take to get the pump working? I had to line up the old pump and see if the current mount will work. The flywheel sticks out longer than the old pump so had to get the holes to have enough 'meat' around them to ensure they would last! Once this was figured out I noticed the flywheel and motor pulleys no longer aligned! Next had to get the motor holes lined up. This was the same process as the pump, needed to get pulleys ligned up and have enough meat around them to keep the motor secure. The belt no longer fit (had to push the motor back a bit to get enough metal around the holes. Bought two sizes ($14/ea) larger (was on the a38 so tried the a39/40 and ultimately are using the a40 for now). Discharge tube has a 1\" standard thread to 3/4 MIP? and my old discharge tube was 3/8 NPT. ended up getting a 1\" to 3/8 NPT then a female 3/8\" coupler from HD (they have them on amazon but I took the parts into HD to make sure it would work (more time &