what back spacing for 15 x 8 w/ 275/60/15's?
Thread Starter
Joined: Feb 2001
Posts: 752
Likes: 19
From: Westminster, MD USA
Car: 91 Firebird 'vert, 91 Formula
Engine: 5.7, 5.0
Transmission: T56, T5
Axle/Gears: Auburn w/ 3.73's, 3.42
what back spacing for 15 x 8 w/ 275/60/15's?
I have a set of 275/60 Hoosier quicktimes I'm going to mount on a set of Weld Draglites but should I order them w/ 4-1/2 or 5-1/2 backspacing? Also, will these rub on a lower '91 Z? I haven't lowered it yet but plan too & already have the tires.
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'91 Z28 1LE; 355, Sportsman II heads, Edelbrock TPI w/ 58mm TB, Tremec TKO 5-speed, 3.73's & much, much more
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'91 Z28 1LE; 355, Sportsman II heads, Edelbrock TPI w/ 58mm TB, Tremec TKO 5-speed, 3.73's & much, much more
Supreme Member
Joined: Mar 2000
Posts: 13,414
Likes: 6
From: Central NJ, USA
Car: 1986 Firebird
Engine: 2.8 V6
Transmission: 700R4
I have that size tire on 15x8 American Racing rims... I don't remember the backspacing, but if it's stamped on the original boxes (holding my old rims), I'll let you know tomorrow.
[edit] I'll tell ya though, the fender lip (er... quarter panel lip?) will scrape the sidewall if I lower the back of the car (I have air shocks)... so my backspacing might not be the best to use
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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!
[This message has been edited by TomP (edited May 01, 2001).]
[edit] I'll tell ya though, the fender lip (er... quarter panel lip?) will scrape the sidewall if I lower the back of the car (I have air shocks)... so my backspacing might not be the best to use

------------------
-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!
[This message has been edited by TomP (edited May 01, 2001).]
Thread Starter
Joined: Feb 2001
Posts: 752
Likes: 19
From: Westminster, MD USA
Car: 91 Firebird 'vert, 91 Formula
Engine: 5.7, 5.0
Transmission: T56, T5
Axle/Gears: Auburn w/ 3.73's, 3.42
Thanks Tom, that'd be a help! I've seen 275/50's on lower Z's before, I may just wait until the Hoosiers are finished before lowering it....
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