1979 Gehl 360

[bearcatrp]

Got a pretty good deal on this for yard work help. Want to make some changes though. Tires are 1st. Current ones are just to thin. Book calls for 7.50 x 12 or 8.50 x 12. 5 bolt lug. Can I go a bit bigger/wider without putting stress on the drive train? Wanting turf tires and no one in my area has anything for current rims. Current tires on it is 5.70 - 12 8 ply. Have looked at ebay but leary to order and end up with something that doesnt fit. Appreciate any help. Thanks.

 

[Tazza]

As long as the sizes are matched, you won't put any more strain on the pumps or motors, being hydraulic, if they stall, the fluid just goes over the relief, they are made so you can't damage them by putting too much load on them, unlike an electric motor that will burn if there is too much load applied.
Tha main strain on the drive chains/sprockets is due to mis-matched tyre sizes on the same side of the machine, they fight eachother and can cause more wear.