This is a H700-070A Peerless Transmission on a 48" Scag. The unit runs in reverse just fine. When in 1st - 3rd gear the unit will take off fine then it will hesitate and then take back off. If I load it down it doesn't seem to make the frequency worse. Belt is banjo tight It is like jumping out and in gear. And no drive in 4th or 5th gear which may or maynot be related. We unfortunately used those high gears for braking when in transient.