Poulan Pro #960 4600 75 00 clutch/brake pedal, shaft assembly bounce all over the place when machine is moving. Did a hand over hand and visual but did not see a large spring anywhere. In my repair manual it is shown as part # 161, spring return clutch, but shows no attachment points. I have looked on YouTube but as yet have not found any visuals. Any help would be appreciated.The brake & clutch are on the same pedal
Get under the mower and follow the clutch / brake rod
Some where under there you will see a compression spring usually where the brake rod splits off the clutch rod.
Adjust it so that the clutch takes up just after the brake releases .