Wheels

From IH8MUD Wiki

Came standard with 16, 17 or 18 inch wheels, 8" wide alloy. In some markets 16x6.5 steel or 16x6 split ring was an option.

Specs:
Number of bolts: 5
Bolt size: M14x1.5
Bolt circle: 150 mm
Hub diameter:
Offset:

Standard tire is 31" (275/70R16 / 275/65R17 / 275/60R18) but up to 33" diameter will fit without any lift or other modification as long as the tire is not too wide.