can i run these with a 2" spacer?
02-06-2012, 09:05 AM
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Car: 1992 RS
Engine: ZZ4
Transmission: T-5
Axle/Gears: 3.73
can i run these with a 2" spacer?
http://www.ebay.com/itm/18x8-Boss-33...item35ac14fefc
it says the offset is only 2? thought i was looking for a 56mm offset? im running stock rear, will be lowered on sportlines/ tokico hps want to run this wheel with a 255/40/18 will these wheels work or do i have to find another set with diffrent offsets?
it says the offset is only 2? thought i was looking for a 56mm offset? im running stock rear, will be lowered on sportlines/ tokico hps want to run this wheel with a 255/40/18 will these wheels work or do i have to find another set with diffrent offsets?
02-06-2012, 09:47 AM
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Car: GTA
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: Aussie 9-bolt/3.27 posi
Re: can i run these with a 2" spacer?
You won't need spacers at all to run those wheels.
EDIT: I said that based on +2mm & the 4.517" bs of a 8" wide wheel, but those measurements don't match.
A 9" wheel with 0 offset is 4.5" bs.
A 8" wheel with 0 offset is 4" bs.
2mm=0.0787" so add that to the 8" wheel #s above & you get 4.0787"bs. It would still fit but makes me question their 4.517"bs.
If there was a typo & it is 20mm, that would make it a 4.787"bs. Still fits but why don't their #s add up to start with? Makes me question all their #s. Is it even a GM fit wheel & not a Ford fit?
EDIT: I said that based on +2mm & the 4.517" bs of a 8" wide wheel, but those measurements don't match.
A 9" wheel with 0 offset is 4.5" bs.
A 8" wheel with 0 offset is 4" bs.
2mm=0.0787" so add that to the 8" wheel #s above & you get 4.0787"bs. It would still fit but makes me question their 4.517"bs.
If there was a typo & it is 20mm, that would make it a 4.787"bs. Still fits but why don't their #s add up to start with? Makes me question all their #s. Is it even a GM fit wheel & not a Ford fit?
Last edited by BlackenedBird; 02-06-2012 at 10:09 AM.
02-06-2012, 02:54 PM
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02-06-2012, 05:58 PM
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Car: 86 Trans Am, 92 Firebird
Engine: 408 sbc, 3.1L of raw power
Transmission: TKO600, T5
Axle/Gears: Moser 9", 3:70 trutac, 3:23 torsion
Re: can i run these with a 2" spacer?
You won't need spacers at all to run those wheels.
EDIT: I said that based on +2mm & the 4.517" bs of a 8" wide wheel, but those measurements don't match.
A 9" wheel with 0 offset is 4.5" bs.
A 8" wheel with 0 offset is 4" bs.
2mm=0.0787" so add that to the 8" wheel #s above & you get 4.0787"bs. It would still fit but makes me question their 4.517"bs.
If there was a typo & it is 20mm, that would make it a 4.787"bs. Still fits but why don't their #s add up to start with? Makes me question all their #s. Is it even a GM fit wheel & not a Ford fit?
EDIT: I said that based on +2mm & the 4.517" bs of a 8" wide wheel, but those measurements don't match.
A 9" wheel with 0 offset is 4.5" bs.
A 8" wheel with 0 offset is 4" bs.
2mm=0.0787" so add that to the 8" wheel #s above & you get 4.0787"bs. It would still fit but makes me question their 4.517"bs.
If there was a typo & it is 20mm, that would make it a 4.787"bs. Still fits but why don't their #s add up to start with? Makes me question all their #s. Is it even a GM fit wheel & not a Ford fit?
So a 8" wheel with 0 offset has 4.5" of BS, and for that matter 4.5" to the face of the wheel as well. A 9" wheel with 0 offset has 5" of BS because its 10" wide overall.
If the wheels the OP listed are 18x8 with 2m offset, they will bolt right up with no spacers.
Last edited by //<86TA>\\; 02-06-2012 at 06:15 PM.
02-06-2012, 06:15 PM
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Car: GTA
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: Aussie 9-bolt/3.27 posi
Re: can i run these with a 2" spacer?
OK.....Somehow I screwed up my #s & I guess my 9" wheels fit without any spacers & have 5" bs? So those will fit.
02-06-2012, 07:04 PM
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Car: GTA
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Axle/Gears: Aussie 9-bolt/3.27 posi
Re: can i run these with a 2" spacer?
My 17" x 11" fit in the rear too without any spacers, although they did require a "little" inner sheetmetal cutting & BFH work. 
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02-06-2012, 07:10 PM
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