IIRC the stock alloy rims for a gen I are either 6 or 7". If 7" then you should be ok as that's the minimum rim width for a 10.5 tire (per BFG's website).

I know Phil used to run pizza cutters. He may still have them. I don't remember what he was running when he had his last gen I.

Off Roader
98 Montero with the Winter Package
89 Montero minty clean and reserved for overlanding trips or Cars and Coffee events
96SR (3.15:1 xcase, 35's) gone to the rust gods
96SR Build Up Thread
Old web page
Old web page