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01-10-2005, 11:46 PM
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#1 |
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Registered User
Join Date: Dec 2002
Location: Marysville, WA
Posts: 101
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8 lug wheel question
What is the bolt pattern on the 8 lug 3/4 ton wheels? I think it is 8-6.5 but wanted to know for sure. Also what offset looks good on these trucks? I have seen the brand new silverado wheels on our trucks and they look terrible because the offset is all off and I would like to avoid this.
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1971 gmc 3/4 ton, 350, t350 |
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01-11-2005, 12:52 AM
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#2 |
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Registered User
Join Date: Jan 2003
Location: Mesa, Arizona
Posts: 125
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I think the offset on the newer 8-lug wheels is actual the same (or very close to the same) as our original wheels. The newer ones are only 6.5" wide though, so they look as though they're inset too far on our trucks.
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Paul 72 Cheyenne Super Custom Camper greenaz@hotmail.com |
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01-11-2005, 12:59 AM
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#3 |
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Registered User
Join Date: Jun 2004
Location: Beeville, Texas
Posts: 1,943
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Yessir, the 8 lug pattern is 8X6.5". Almost any 8 lug rim will fit on these trucks.
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RJD 1984 Chevrolet C30 welding truck 454/SM465 1977 GMC C15 pickup 350/TH350 1970 Chevrolet C20 pickup 350/TH400 1970 Chevrolet K20 Suburban 454/TH350 1969 GMC 8500 478M V6/5 spd winch truck |
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01-11-2005, 09:20 AM
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#4 |
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user # 2756
 
Join Date: Jun 2001
Location: Chesapeake, Virginia
Posts: 4,612
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Just watch out for those ferd rims, they are 8 on 170mm. On my 16.5" rims I have about 5" of back spacing while my 15" 8 lug rims the backspacing is just under 4".
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1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm 
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01-11-2005, 10:35 PM
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#5 |
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"Trucks with Class"
 
Join Date: Jul 2000
Location: OLYMPIA, WA, USA
Posts: 8,160
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F-o-r-d
There I said it and I feel better now
 If you want to run stock hubcaps, the earlier Ford's are much better looking than our wheels. The Fords are wider & have more offset...See these wheels & tires for sale on the Parts Board later.
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01-12-2005, 07:40 AM
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#6 |
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Special Order
  
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,851
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Non-GM wheels that start with an F and end in a d went to metric around 1996.Before that 8=lug wheels were standardized,imagine that.The above mentioned company had slightly larger center-bores at least at some point in time.Aftermarket wheels are all interchangeable,except those damned metrics.The wheels from late-model IFS have less "dish"/more backspace.They are the same width as earlier wheels.
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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01-12-2005, 11:10 AM
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#7 |
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Cantankerous Geezer
Join Date: Aug 2002
Location: Bel Aire, KS
Posts: 6,264
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Question on the non-GM wheels. Do any of them hold the same dimensions for hubcap mounting as GM? I need to find some wheels for my 52 3/4 ton, which takes a 3-1/8" setback to clear a tie rod end. The stock GM wheel requires a 2" spacer to fit. And I love the hubcaps.
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Fred There is no such thing as too much cam...just not enough engine. 
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