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05-13-2018 #21
Registered User
- Join Date
- Dec 2007
- Location
- Atlanta, GA
- Posts
- 54
What is your backspacing with the 245-40-18 front and 275-35-18 rears?
Mark Z.
1968 Firebird
2016 Mustang GT w/ Performance Pack
2014 BMW X5 Turbo V8, AWD Highway Cruiser
1970 Firebird Formula 400 (Gone but never forgotten)
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05-13-2018 #22
Registered User
- Join Date
- Dec 2007
- Location
- Atlanta, GA
- Posts
- 54
Rickpaw - What back spacing are you running on the 18x8 front and 18x9 rear. Are you running a 275-35-18 rear or 275-40-18, the 35 aspect is about 0.2 inches shorter than your 245-40-18 front.
Mark Z.
1968 Firebird
2016 Mustang GT w/ Performance Pack
2014 BMW X5 Turbo V8, AWD Highway Cruiser
1970 Firebird Formula 400 (Gone but never forgotten)
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05-28-2018 #23
Registered User
- Join Date
- Jun 2008
- Location
- Just Outside The Motor City
- Posts
- 33
Hello, Sorry for the slow response. I haven't been on here in a while.
Originally Posted by Zyman
Anyway, to answer your questions:
Front: 18 x 8 Backspacing 4.75
Rear: 18 x 9 Backspacing 5.25
If I'm honest, for the rear backspacing, I think I should have gone inboard a little more. When I have my wife and kids in the car as well as a full tank of fuel, when crossing intersections with a lot of crown or dips. I will get slight rubbing on rear outer sidewalls of the tires.
No issues with the front.
Tires:
Front: 235-40-18
Rear: 255-40-18
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