275s up front on a 89 coupe(what is needed to make fitment work?)

Hello I dont know if this has been asked I searched this so I hope it hasn't. I was wondering for my 1989 coupe I have 17x9 cobra r wheels and I'm switching to 5 lug with sn95 spindles. I was wondering what will it take to swap to 275s in the front I have 245s right now. Will I have to swap to the 91-93 fenders or will I have to roll the fenders? My quarters are already rolled for the 275s and the ride height I have. Any help will appreciated.
 
They will fit with the correct offset. I have original 10th anv cobra rims with 275 front and rear. The wheel will rub on the front part of the fasica and the rear part of thr a arm. Rack limiters will be needed which will reduce the turning radias slightly. Depends on how bad you want the tire size. Get creative and you should be fine.
 
LordMustangGT said:
I have a friend with 275 on his 79 notch with the new Mach 1 wheels. Fit just fine. Only problem is that it will rub at full lock on the inside fender well. But nothing bad. looks awesome too!

It doesnt sound like too good of an idea for your Buddy to be running 275s on a 17x8 Wheel!!!