Backspacing w/ 93-97 f-body rear brakes

[essenge]

I made a post before about getting a set of centerline wheels, the rear backspacing would be 5.5inches with a 17x9.5 wheel. If I switch to the discs from a 93-97 f-body do I need to add another .25" to my backspacing? 5.75 instead of 5.5?

Also, this may be asking too much, but if I do the front C5 conversion OR the b-body 12" conversion w/ 1LE rotors does anyone know if they change the spacing in the front?

Thanks for any help in advance.

[D Rock]

I would like to know the exact same answers to these questions. This is for a first gen camaro correct?

Derek

[essenge]

Oops crap. Its for a 74 camaro actually. It should have the same effect though I would think.

[D Rock]

Yes it would have the same effect, and actually the rear backspacing sounds almost the same if not exactly alike.

[essenge]

Well what I've gathered from other threads and PM's you need to add 1/4" of backspacing when converting to discs. So for me, instead of 5.5" I need 5.75". Hope it helps you.

[zbugger]

Well, essenge, you don't need to do anything. The 5.5" Backspace will still fit on your car. You can actually go bigger on the tire, but that is another story....

[essenge]

Eh?

Im going with a 285/40/17 I believe (Even though I think I said 275). Centerline doesnt make a 10inch wheel in the series that I want, just 9.5. Will 5.5 still work then?

[MarkM66]

The 4th gen rotors dont ad 1/4" over drums. They are actually pretty thin, I'd say they'd ad 1/8" max. I think 5.5" or 5.75" will work fine for you. If you want, get the 5.75" and ad a small spacer if needed.