I have a Bolens with a 12hp Briggs and it's a 5 speed. The shifter is on the right fender and is very hard to shift when running. The belt seemd too tight but adjusted the clutch/brake pedal and no better. It had a 96 inch belt on it and I even tried a 97 but the 97 was too sloppy. It also has all new pullys on the deck. But these are the same size that came off, which has no relation the the drive (clutch) part of it. Any thoughts?