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12-01-2006, 04:43 PM
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#1 |
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Longtime Member
Join Date: Oct 2002
Location: Over Yonder (DFW)
Posts: 171
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Eight Lug to Six Lug
I have a buddy with a 1968 C20 father/son project. They want to change the bolt pattern from an eight lug to a six lug so they can mount some late-model rims and tires that they already have. What would be the easiest/cheapest way to do this?
I've done a search and found a ton of six-lug to five-lug stuff (obviously) but nothing for eight lugs to six.
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Rokcrln - "I'm a major car addict so trying to go as low buck as possible is like asking a coke head to use flower to save money." 1972 C10 Short Step -http://67-72chevytrucks.com/vboard/s...d.php?t=261405 |
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12-01-2006, 04:49 PM
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#2 |
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Its always something!
Join Date: Aug 2005
Location: FT Worth,TX
Posts: 4,992
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Re: Eight Lug to Six Lug
It would be basicaly the same as the 6 to 5 swap. Find a 6 lug rear end & I believe the 1/2 ton & the 3/4 ton a-frames are the same just have to change the ball joints to run the 6 lug stuff.
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79 p10 stepvan 72 Short Fleetside 72 Suburban 67 GMC One Ton Flatbed 64 Short Fleetside 57 Chevy 2DR Hard Top 57 Chevy 2dr wagon 65 f*** short fleet 63 C 60 Flatbed   Member of the patina club |
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12-01-2006, 07:28 PM
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#3 |
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Registered User
Join Date: Apr 2006
Location: oklahoma
Posts: 10,669
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Re: Eight Lug to Six Lug
Upper A-arm will be fine lower one will need to be replaced. The lower one has a larger diameter hole for the ball joint on the 3/4 ton. You need to get one off of a 67-70 1/2 ton. Oh and be forewarned, the newer, 99-up six lug wheels have the same bolt pattern but the center hole is a smaller diameter than the original 67-70 wheels. The center hole on the new wheels will need to be machined to the larger diameter. Or the rear axle and front hub will need to be machined down to the newer wheel center diameter. Hope this helps.
Last edited by Aarons72s; 12-01-2006 at 07:28 PM. |
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12-01-2006, 08:11 PM
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#4 |
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Senior Member
 
Join Date: Jul 2004
Location: Estherville, Iowa
Posts: 3,371
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Re: Eight Lug to Six Lug
The newer stock wheels, if that is what they have, also have about 5 inch back space, they will sit inside a long way, assuming you get the hub size problem fixed.
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1968 C10 307 3spd Long Fleet ------ http://67-72chevytrucks.com/vboard/s...d.php?t=201103 1970 C10 305 Super T10 Long Fleet --- http://67-72chevytrucks.com/vboard/s...d.php?t=202285 1971 C20 383 TH350 Dana Posi ----- http://67-72chevytrucks.com/vboard/s...d.php?t=206894 2001 GMC Sierra 1500 C3 6.0 Last edited by Green Machine; 12-01-2006 at 08:13 PM. |
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12-01-2006, 08:46 PM
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#5 |
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Registered User
Join Date: Jun 2006
Location: greenville, north carolina
Posts: 42
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Re: Eight Lug to Six Lug
Mannn i wish i had known a couple weeks ago i would have swapped parts with you for free. truck's gone now though...
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