Go to a small engine dealer or repair shop .
It might be the bearings are shot in your jack shaft.
You probably blew a belt.
Without looking at the setup it's hard to tell. The mower chute and the bag inlet should be right on as a mismatch would cause clogs. It should be too tough to rig a hook and loop to hang the bag.
The John Deere D105 is one of the best-selling riding lawn mowers in the US currently. Its popularity is due to its reliability, performance, and wide availability.
That would be 0.010" but a business card will suffice as as a substitute, as a matchbook could, also.
It would probably be 2002-2004
Depends on the size of the lawn mostly. A push mower (or better yet a powered drive push mower) would have the best control in rough terrain, but if it is a large lawn a riding mower is better.
Depending on the engine brand and model, it would be 1 1/2 to just over 2 qts.
The best riding mower for hilly terrain is would be any kind of walk behind mower as you control it's movements, speed, and direction. However, if you have a large yard and want a riding mower newer LG mowers a good bet. An older option would be a Gravely Garden Tractor.
You have probably broken the drive belt. With the mower turned off, lie on the ground and look underneath the mower. There is a deck belt and a drive belt. The drive belt is the upper belt. Grab the upper belt and see if it is broken.
likely a bad engine.
in my opinon, a lawn mower (riding, preferably) will do