1969 camaro/firebird backspace

[69firebird19]

Would a 4.5 backspace work on the front with 2 inch lowered springs on 18 wheel

[chocthunder]

Depends in how wide of a tire you want to use.

[69firebird19]

18 by 8 wheel.. 245 40 18 tire

[69firebird19]

Rear is 18 by 9 with a 5.25 backspace. 275 40 18 tire

[69firebird19]

Will that rear backspace work aswhell?

[chocthunder]

Not sure if that will work without rubbing in front. I have a 69 Camaro and I plan to use 235/35/18 on front with 18x8 with 4.5 BS and 265/35/18 on rear with 18x9 with 5.25 BS on rear. I'm going a little conservative on tire size.

[ccmc]

You need 4 and 3/4 backspace. I'm running 245/45-17 on 17x8 with 4-3/4 backspace on my 69 Camaro. Slight touch on the frame rail on the inside tire at full lock

[Quikbrd]

Yes, it should work, key word is should. All of these cars are a little different, what fits one may fit another a bit differently, no computer helping put these cars together, and in 46 years since they were assembled, "**** happens"
That being said, my 69 Bird is running 17X9 on all four corners (4 7/8 backspacing) 255/40 in front / 275/40 in rear, the right side front tire touching the frame in a full crank autocross situation, but it's not hurting anything. Measure, then measure again, when you think you it's gonna fit, purchase and then deal with what you got, good luck!

[69firebird19]

I think im going with a 4.75 backspace front since i tought they only offered a 4.5 backspace so a 9 wide with 5.25 backspace is right 3 inchs lowered rear

[69LSX]

On my 69 Camaro I'm running 245/40's on 18 x 8 w/ 4.75 BS (front) and 275/40's on 18 x 9.5 w/ 5.5 BS (rear). 2" drop front & rear.

[67rally]

You need 4 and 3/4 backspace. I'm running 245/45-17 on 17x8 with 4-3/4 backspace on my 69 Camaro. Slight touch on the frame rail on the inside tire at full lock

4.5" BS would push the wheel out 1/4" more than yours and lessen the chance of rubbing on the subframe.

[ccmc]

Thank you, I know but then I would be into the fender and I seldom hit full lock except in parking lots at low speed