wheel size change

[milhovermelho]

Having an xls five speed manual 2 wheeldrive that has a set of 15 inches wheels and four 31x10x50R15 and having purchased a set of factory 16 inches wheels what size of tire can I upgrade with? I want o do this without having to do any modification to it " in other words the wife wont let me" and afecctiing the speedo.

Help!!!!

 

[Crankcase]

275/75R16.....

 

[AspenX]

I was wondering? I have a 91 4dr 4x4 with 15" wheels. My brother gave me a set of 295/75 16 off his 99 and I wondered if the lug bolt pattern was the same. Great Christmas present huh. BFG All-Terrain about half used on 99" EB wheels. Now if I win the lottery I can get a lift. THANKS
David