1994-2004 Rear Tires HOW BIG? w/Pics!

[330CubeGt]

Alot of people ask "HOW BIG" of a tire can i fit under the rear of my car.I have always thought the same way reguardless of funtion over form. I know that our cars on a 275-15 function just fine and manage sub 8 secound passes.

But with my struggle to be different in the mustang world so to speak i came across a set of 345-40-17 Toyo Proxes Tq Drag Radials for a price i couldn't pass up so i got to work trying to stuff these under the car.

Specs on the tires:
345/40R17
Suggested wheel width11.5-12.0-13.5 (I USED A 10.5")
Weight 36.6lbs
Height 27.7"
Width 13.7"

Some inner wheel well massaging with a Big F 'in Hammer (BFH) to all the sharp/rough edges was needed as well as quad shock removal on SRA cars. As far as the outer fender lip it needs to be rolled or hit with a (BFH) so you have enough clearance, if you don't roll the outer lip it will hit and it will cut the tire. In short thats all you need to do to squeeze a 345-40-17 under the rear of your mustang.


My car (97 Cobra with 04 IRS H&R RACE SPRINGS)

-They rub on the outside due to the wider rear but atleast they don't cut the tire.

Roller and outside lip from inside the wheel well.

Friends car (00 GT with stock length rear H&R SUPER SPORT SPRINGS)

 

[SIC9250]

Eh looks somewhat ok,that tire would be 10x better as a 35 series that 40 series has way to much meat between the top of the tire and rim,makes the wheel look like a 16" wheel,but props on fitting that wide bastard,I got 315/35/18" on my IRS sn and I'm drilled,I have an issue with actually rubbing the bumper,where it meets the1/4 panel seam,close to the upper screw for the bumper cover,it's annoying but only on big big bumps at 50mph+ ,but I don't wanna raise the car it looks to good lol