wheels tyres

Bought a set of off road tyres on steels ..They were taken straight off a ninety and thrown in my disco..PROBLEM When I went to fit to my disco the rear ones are 225/70/15 the fronts are 255/70/15What will happen if I fit them ..The rear 225s are big chunky tread tyes similar to dirt drivers 15 16 mmtread very aggressiveso naturally wanted them on the back front 255s are cammac type Will this cause problems TIA

pics? i mite have the Cammacs orf ya.

can get pics in the morning..I was just wondering if the disco would run them

not a problem unless in difflock.

Ahh Thank you .Make much difference in the gearing??

centre diff should take up difference. look up both tyres on a comparison site to get details.

thank you again