Hi,
When you change the rear tire to another rim, remember to put it on facing the right way, so the wheel width can be adjusted like the Cub operator's manual shows.
The right and left rear tires face opposite ways on the rims, so one is used on the left, and one is used on the right, and the treads both face ahead, with the R1, ag tread. Usually there are directional arrows on the side of the tires.
I'm not sure if there are directional arrows on the turf tires.
When changing a tire, be careful and don't pinch the tube against the rim with the tire tools, it can cut the tube.
When the tire is on the rim, and you inflate it, inflate it once, then let all the air out, all that will come out, then inflate it again. This help straighten out any folds in the tube, the tube can be in the wrong position in places, and have folds in it. Deflating it once helps the tube to move so the folds are straightened out. The tube can fail in time where the folds are.
Rear Cub tires use low pressure, unless you are lifting heavy loads on the rear.
12 psi works well for normal use. You can use more if you want.
Below is a page from the 1965 Cub operator's manual showing rear tire pressures, in the table.
http://farmallcub.com/rudi_cub/www.clea ... age-50.jpg
Below are pressures for the front tires. I use about 30 psi, it steers easier than lower pressures.
Your tires probably need to be good to use the higher pressures.
http://farmallcub.com/rudi_cub/www.clea ... age-49.jpg
It's good to widen the rear of a Cub out to the 44" wheel spacing shown in the operator's manual, it makes it a little more stable. That is as wide as it goes with the rear wheel discs turned in.
When removing rear wheels or rims from a Cub, you should use wood wedges in the front axle pivot. Cubs are heavier on the left side, and they can tip over when removing weight from the right rear area.
If you widen the rear rims to the 44" setting, you have to remove both rims at the same time.
You leave the center disc where it is now.
Below is the page from the 1965 Cub operator's manual, showing the spacing. It is the right rear wheel in the pic.
44" is above the tire outline. There are other spacings too.
http://farmallcub.com/rudi_cub/www.clea ... age-46.jpg
If the Cub has an adjustable width front axle, it can be changed to match the rear spacing.
Sometimes the axle tubes are rusted inside, and hard to move.
Below is a pic of the front axle wedges. You will need to make them. Drive them in tight with a hammer. Be sure the small end is not hitting in the pivot, the wedge has to be tight on the top and bottom sides.
