Price to notch the rear end

[86CutlassUCF]

I want to get 275 tires on a 17inch rim on the back of my cutlass. will i need to notch the rear end and how much would that cost?

 

[SBCregal]

whatever the guy that's doing it charges you.

generally, prices vary region to region. call around and ask, or go visiting some shops in your area.

 

[85 Cutlass Brougham]

275's may fit without mini-tubbing the car. I have 245's out back and they do not rub, and there is at least another 3 centimeters of space to work with (the 275 refers to the width in millimeters, so it converts to 27.5 cm.). It is all going to depend on a number of things though, as fitment can be affected by :

How the body sits on the frame. I had to shift mine to center it.

Tire height

Sidewall height. More sidewall flexes more and allows the tire to move around.

Rear suspension condition. If the bushings are shot, the rear axle will squirm around a bit and let the body shift back and forth over the axle.

Tire brand. Not all tires of the same size are the same width or height. It varies by manufacturer and tire model. Case in point: Goodyear Eagle GSC's are wider than BFG Radial T/A's. I ran into this on my Cutlass on the front as the BFG's would not rub, but the GSC's would.

Wheel backspacing. This is critical as you need the tire to be placed in such a way that it is centered in the wheel well. You alter this by altering the wheel's relationship to the axle mounting face.

Another thing you can do is notch and roll the fender lip. I did this on the front of my Cutlass to deal with wide tire fitment issues.