OutdoorKing Repair Forum Forums Repairs and Maintenance Questions On Ride On Mowers Questions On Ride On Mowers Frames Project-mtd 12.5 briggs twin ride on

As I was getting the full seven speeds, I didn't have to do any adjustments to this setup.
All I had to do was remove the belt from the transaxle pulley.
From what I saw at the time, what you have described is how it works.