While you wait for answers, we may have found some information which could help you.
Click here for Lawn Mower Rear
Scotts 1642 ground drive belt?
need to replace mower belt, scotts 1742?
Scotts L17.542 won't turn over?
Replaceing Belt on Scott's 1742G Lawn Mower?
Scotts mower dies when i let off the clutch?
How to adjust the drive belt tension?