68 Cutlass staggered wheel and tire question (17x8f 18x9.5r)

[Dogman691]

I'm sure this have been covered before on the Chevelle, GTO, 69-72 but I've been told that the 68's are a little different. I plan to run Bfg 235/45zr17 on the front. The concern I have in the rear is I have 18x9.5 wheels and going to run Bfg 275/40zr18, the overall tire diameter is 26.66". Is this to tall or should I drop to the 275/35 tire which is a closer overall diameter to the front tire. I do have the hotchkis 1" drop front and rear. I do plan to upgrade over time taking baby steps. I dont want a wild rake with the front end low, I like my car to be fairly level. Thanks for any help in advance!!

[Dogman691]

Anyone has any ideas, I'd like to order or find my rear tires within the next couple days. I just don't want to make the mistake of getting the wrong size, can't afford to keep changing them out.

[camino70]

Sorry dogman, I don't have the answer, but if your anywhere near Atlanta, you can swing by and throw on my wheels to check clearance.

[Dogman691]

Thanks Camino, for the offer but I'm up in Maryland. My car is sitting in the garage on the lift waiting for some tires.

[Mr Nick]

I've been told the 68/69 rear wheel wells are smaller than the 70-72 cars, but I'm not sure if the 68 is smaller than the 69.

All I can add is, I have 18x9 with 285/40/18 in the rear, with no rubbing. Car is lowered a good 1.5-2 inches in the back.

275/40/18 shouldn't be too tall, in fact (in my opinion) I think 275/35/18 would look too short on an A-body. The Firebird's and Camaro's can pull them off when lowered properly.

[Dogman691]

Thanks MrNick for the input, I read the same thing about the wheel wells and agree with you. I really like the stance of your car and it looks nice. I think I'm just going to go with the 275/40's believe it's the best choice.

[68Formula]

235/45R17 will look too small in the front. Go with 245/45R17. Same sidewall height as the 275/40R18, so it will still look proportionally correct.