i serviced an older troybilt mower some years ago .it was rear wheel drive and was buily very very good.
i was impressed with its quality and the reason i remember it after all these years is because it had a D shaped handle that was used to adjust all the wheels height at once.and it set them infinate there was no notches or anything ,you just cranked it up or down simple.
had a real heavy tranny in it and 3 or 4 speeds,nice unit.
probably only made a few and never any parts for them now.
new troy stuff dosent interest me much now,im gonna miss those rear tine tillers.
later chris
craftsman 10/28 snowblower with tracks husky 372xpg chainsaw sachs dolmar bc212 bushsaw mondo trimmer monster tractor with trailer cheep wheelbarro and couple shovels and a partridge in a pear tree
BCS Tractor & snowblower