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03-01-2004, 12:27 PM
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#1 |
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Registered User
Join Date: Oct 2002
Posts: 90
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Bolt Pattern/Wheel Help! (4x4)
I need a new set of wheels for my truck, but don't know the proper backspacing or bolt pattern. I have a 1985 GMC Sierra 4x4 1/2 ton. I know the wheels are 6 lug, but I just want to confirm that they are 6x5.5. Also...what backspacing do I need? Brakes are all factory...discs up front & drums in the back. Any help would be great.
Thanks, Josh |
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03-01-2004, 12:42 PM
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#2 |
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Registered User
Join Date: Feb 2003
Location: Mont Belvieu, TX
Posts: 852
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I do know that they are 6 on 5.5, but someone else will have to help with the back spacing.
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Chris '92 ext. cab s/b 4.3L "Sparky" '04 crew cab 2500 4x4 6.0L |
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10-15-2007, 11:01 AM
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#3 |
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Registered User
Join Date: Apr 2005
Location: Saint Clair, MI
Posts: 35
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Re: Bolt Pattern/Wheel Help! (4x4)
Bringing this back from the dead. I have an 84, so practically the same. What is the center hole size? What should backspacing be? Thanks
Matt |
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10-17-2007, 03:29 PM
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#4 |
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Registered User
Join Date: Apr 2005
Location: Saint Clair, MI
Posts: 35
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Re: Bolt Pattern/Wheel Help! (4x4)
No one?
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10-17-2007, 05:58 PM
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#5 |
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Registered User
Join Date: Dec 2006
Location: Earth
Posts: 239
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Re: Bolt Pattern/Wheel Help! (4x4)
It is a 6- 5.5 bolt spacing, usually when buying rims it'll say for chevy truck. Because the center flange has to be bigger to accomidate the hub assembly
As for backspacing....no clue Duro
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-1986 K10 LWB, 350 HD,TH400 3.08, 30 spline 10 bolt, with an Auburn Posi, 31" tires All original, second owner truck -1979 Monte Carlo, 350, 200r4, 3.73 posi -1987 GT T-top Mustang - slow moving project |
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10-17-2007, 06:37 PM
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#6 |
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Registered User
 
Join Date: Jun 2007
Location: Springfield Mo.
Posts: 1,086
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Re: Bolt Pattern/Wheel Help! (4x4)
I believe the backspacing on a 6 lug 5.5 is 5". ...Joe
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I'm not speedin'! I'm qualifyin'! |
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10-18-2007, 09:48 AM
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#7 |
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Registered User
Join Date: Apr 2005
Location: Saint Clair, MI
Posts: 35
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Re: Bolt Pattern/Wheel Help! (4x4)
Thanks!!
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10-18-2007, 10:52 AM
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#8 |
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www.73-87chevytrucks.com
 
Join Date: Dec 1999
Location: Birmingham, AL
Posts: 6,935
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Re: Bolt Pattern/Wheel Help! (4x4)
AFAIK all factory Chevy truck rims use a 4" backspacing regardless of rim size (7 or 8" wide)
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Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com |
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10-18-2007, 06:08 PM
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#9 |
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Registered User
Join Date: Jun 2007
Location: Springfield Mo.
Posts: 1,086
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Re: Bolt Pattern/Wheel Help! (4x4)
I believe that he was asking about aftermarket rims. At least that is the way that I understood the question. I'm running aftermarket wheels on both of my trucks. One has 16x8s and the other has 15x10s. Both have a 5" backspace. Hope this helps. ...Joe
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I'm not speedin'! I'm qualifyin'! |
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