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Thread: Wheel and tire size for GN
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05-07-2008 #1
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Wheel and tire size for GN
Looking to order some wheels for my Grand National. I would like to run a 18X9 for the rear and 7's or 8's in the front. Does anyone have any tire size recommendations that will work with that combo. I am proabably going to order to boze wheels. Does anyone know right off hand the backspacing that will work on the G body's. I think it is 4.75 but I will have to measure it to be sure.
1987 Monte Carlos SS Aerocoupe, ZZ4 w/200R4, 12 bolt rear 4:10 gears, alum cover, southside control arms
Black w/maroon interior, 6 point cage For Sale
1987 Buick Grand National 21K actual miles
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05-07-2008 #2
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From what I've heard/read.
Rear in a 9" width should be 4.75
Front in an 7" or 8" width should be 4.5
05-08-2008 #3
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That sounds good.
Originally Posted by Never Enough
87 Turbo T: Precision 5857 Billet Wheel turbo, PTE Turbosaver, Razor's Progressive Alky, Red's XP fuel pump hotwired, Accufab AFPR, TurboTweak 93/94 chip, Scanmaster 2.1, 9 inch K&N filter, aluminum driveshaft, 160 thermostat, 3 inch Terry Houston downpipe with dump, DMH electric exhaust cut-out, TH 2.5 inch exhaust with Magnaflows, RJC powerplate, torque strap, Dutt neck stock intercooler, LT1 MAF, Translator Plus, Digi-Tails LED sequential tail lights, Eaton posi, TA Performance rear end girdle
Simmons wheels: 17x8.5 front (4.32" backspacing) with 235/45/17s Vredestein Sessentas, 17x9 rear (4.75 backspacing) with 275/40/17s, SC&C Street Comp Stage 2 kit (adjustable upper control arms, Howe tall upper and lower ball joints, S10 Xtreme lower control arm bump stops), 13 inch Baer front brakes, S10 rear wheel cylinders
05-12-2008 #4
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18x10 with4.75 backspace
05-12-2008 #5
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Thanks Eric, your car looks sick and I have seen it on turbo buick. I seen where some people have run a 18X9.5 with a 5in backspacing. Is that possible. That of course was a 1 piece Coy C5.
1987 Monte Carlos SS Aerocoupe, ZZ4 w/200R4, 12 bolt rear 4:10 gears, alum cover, southside control arms
Black w/maroon interior, 6 point cage For Sale
1987 Buick Grand National 21K actual miles
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