275/60r15 wheels with a 4th gen rear end?
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Car: 1986 Pontiac Trans Am WS6
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275/60r15 wheels with a 4th gen rear end?
Hey, I was wondering what backspacing wheels would it take to make this tire size work? I've read forums and this seems like a common rear tire size, however, I swapped in a 94 Camaro rear end and it's like 4 inches wider. Has anyone swapped rears from a 4th gen and ran 275/60r15s?
Thanks, Sean
Thanks, Sean
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From: Sophia, NC
Car: 2016 Camaro SS + 1986 Z28
Re: 275/60r15 wheels with a 4th gen rear end?
I would agree that the quick math on a 4th gen rear is 4" wider, though I don't have the exact measurement. But using 4" inches...figure obviously 2" on each side, soooo each wheel would need approximately 2" more offset, which converted to mm, is about 50mm. That's what you'd be looking for, for the wheel to fit like stock.
Thread Starter
Junior Member
Joined: Sep 2020
Posts: 78
Likes: 14
From: MI
Car: 1986 Pontiac Trans Am WS6
Engine: 383 Stroker
Transmission: TCI 725hp built 700R4
Axle/Gears: 94 Camaro 10 bolt. Posi 3.23
Re: 275/60r15 wheels with a 4th gen rear end?
I would agree that the quick math on a 4th gen rear is 4" wider, though I don't have the exact measurement. But using 4" inches...figure obviously 2" on each side, soooo each wheel would need approximately 2" more offset, which converted to mm, is about 50mm. That's what you'd be looking for, for the wheel to fit like stock.
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From: Rochester NY
Car: 1984 z28
Engine: 355
Transmission: 700r4
Axle/Gears: Moser 9" 4.11
Re: 275/60r15 wheels with a 4th gen rear end?
Depends on the wheel are going to run a 15x8 or 15x10
Hey, I was wondering what backspacing wheels would it take to make this tire size work? I've read forums and this seems like a common rear tire size, however, I swapped in a 94 Camaro rear end and it's like 4 inches wider. Has anyone swapped rears from a 4th gen and ran 275/60r15s?
Thanks, Sean
Thanks, Sean
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From: Colorado USA
Car: '83 Firebird (T/A Clone)
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Transmission: 700R-4, 2000 RPM stall converter
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Re: 275/60r15 wheels with a 4th gen rear end?
That 275/60-15 is pretty dang tall (28 inches)...
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From: Plymouth Twp. PA
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Re: 275/60r15 wheels with a 4th gen rear end?
Thread Starter
Junior Member
Joined: Sep 2020
Posts: 78
Likes: 14
From: MI
Car: 1986 Pontiac Trans Am WS6
Engine: 383 Stroker
Transmission: TCI 725hp built 700R4
Axle/Gears: 94 Camaro 10 bolt. Posi 3.23
Re: 275/60r15 wheels with a 4th gen rear end?
Its been a fat minute since Ive been able to get back on here. But I was planning on 15x8s all around. Im pretty sure if I go 5in back spacing ill be fine. However, I have forever been in love with torque thrusts and I want a set bad. I can only find reasonably priced ones with 4.5 backspacing. The wheels now are 4.75. Im thinking a quarter inch wont be too bad, but I don't know
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Thread Starter
Junior Member
Joined: Sep 2020
Posts: 78
Likes: 14
From: MI
Car: 1986 Pontiac Trans Am WS6
Engine: 383 Stroker
Transmission: TCI 725hp built 700R4
Axle/Gears: 94 Camaro 10 bolt. Posi 3.23
Re: 275/60r15 wheels with a 4th gen rear end?
Joined: Sep 2003
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From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: 275/60r15 wheels with a 4th gen rear end?
15x10 7.25-7.5” bs is right for that tire with a 4th gen rear
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