ahittz24

I am looking at a set of 4 lug 03/04 cobra wheels that are 17"x9" and I want to know what is the correct offset? I have seen +18mm,+26mm, and +27mm, also what is the correct backspacing? I dont want the tires to rub and its going on a lowerd car.

NYMustang50

+18mm off set.. 5.71" back spacing.. Might need some fender pounding on the rear and a fender lip roll.. American Muscle has them..

AdderMk2

american muscle doesnt know how to do wheel specs apparently...
5.71" backspacing on a 9" wheel is a +30mm offset

OnyxCobra

If you buy wheels that are made for your car shouldn't they have the correct offset?

ahittz24

50 resto has them four lug (assuming thats meant for a fox) at +26mm and +27mm

I found a set on ebay at +18mm and its also a four lug.

So adder my question to you is what is the correct offset?

AdderMk2

well, that depends on the width of the wheel, tire size, and desired look

I can base all fitment off a stock wheel if need be

89Mustangn00b

what ever you go with let me know if it works because I 2 was looking at the 4lug cobra wheels 17x9 for my 89 mustang.

86HOGT

My 03 4 lug Cobras rubbed on the inner lip on the front control arm at full lock...I went with 8 inch wide wheel in the front when I went 5 lug...unfortunately I don't think thy make an 8 inch wide wheel in te four lug version.

ahittz24

What offset were you using? I am going to be running this on a tubular kmember kit so hopefully the a arms are narrower than the stock ones at the point of contact.

86HOGT

In that case I'm sure there will be no issues.