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#1 |
Tot Roddin'
Join Date: Apr 2005
Location: Mid-MO
Posts: 24,461
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Bolt Pattern Question(s) (5 vs. 6)
Guy's in know this is probably a stupid question, but I need to ask it.
Can a wheel be drilled to accomodate both a stock 5-lug ('71-72) setup as well as a 6-lug setup (67-70)? I'm not referring to a spoke wheel design, but more of a custom drilled application. I wasn't sure if they would "cross" bolt patterns. While we're at it, what are the bolt patterns for the 5-lug and 6-lug? IIRC, the 5-lug is 5 on 5, but I couldn't recall the 6-lug measurements. Thanks in advance!
__________________
-Nate ![]() 1969 CST SWB - Project Blank Slate (4.5/6" ECE Static Drop, 6-lug disc brake upgrade (manual), Billet Specialties Vintec 20x8.5 255/40 (F) 20x10 295/40 (R), 250 I-6) 1960 AMF Skylark - Tot Roddin' (Lowered with custom frame; soon to include custom push bar and interior) 2008 Silverado CrewCab 1LT (5.3L, 3:73, 4x4, LT1, Z-71, Towing Package) |
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#2 | |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,980
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Re: Bolt Patter Question(s) (5 vs. 6)
Quote:
From what I remember on my re-drilled axles & hubs, the machinist indicated you couldn't do a dual pattern set-up because some of the holes would interfere. I've never measured personally so it might be worth investigating (I've been told info before only to find it wasn't 100% correct).
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#3 |
Tot Roddin'
Join Date: Apr 2005
Location: Mid-MO
Posts: 24,461
|
Re: Bolt Pattern Question(s) (5 vs. 6)
Scoti, thanks for the information. I kind of assumed the bolt patterns would cross. I will do some investigating to see if this is true.
Anyone have any experience with these measurements?
__________________
-Nate ![]() 1969 CST SWB - Project Blank Slate (4.5/6" ECE Static Drop, 6-lug disc brake upgrade (manual), Billet Specialties Vintec 20x8.5 255/40 (F) 20x10 295/40 (R), 250 I-6) 1960 AMF Skylark - Tot Roddin' (Lowered with custom frame; soon to include custom push bar and interior) 2008 Silverado CrewCab 1LT (5.3L, 3:73, 4x4, LT1, Z-71, Towing Package) |
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#4 |
Senior Member
Join Date: Jan 2005
Location: Loveland Co.
Posts: 3,098
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Re: Bolt Pattern Question(s) (5 vs. 6)
I swear a buddy of mine said he talked to someone at Moser and they said it could be done, I'll ask him again.
__________________
Chris 74 Custom Deluxe SWB 350/350/3.73’s 99 2wd Silverado RCSB 5.3/4L60/3.90’s http://www.classictrucks.com/feature...short_bed.html |
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#5 |
Tot Roddin'
Join Date: Apr 2005
Location: Mid-MO
Posts: 24,461
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Re: Bolt Pattern Question(s) (5 vs. 6)
Chris that would be awesome!!!
__________________
-Nate ![]() 1969 CST SWB - Project Blank Slate (4.5/6" ECE Static Drop, 6-lug disc brake upgrade (manual), Billet Specialties Vintec 20x8.5 255/40 (F) 20x10 295/40 (R), 250 I-6) 1960 AMF Skylark - Tot Roddin' (Lowered with custom frame; soon to include custom push bar and interior) 2008 Silverado CrewCab 1LT (5.3L, 3:73, 4x4, LT1, Z-71, Towing Package) |
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#6 |
Nothing to see here.....
![]() Join Date: Jun 2007
Location: Shawnee, KS
Posts: 4,625
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Re: Bolt Pattern Question(s) (5 vs. 6)
Nate,
I know I've seen 5 on 5 to 6 on 5.5 billet spacers. Let me verify though......
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Doug ![]() ![]() The democracy will cease to exist when you take away from those who are willing to work and give to those who would not. Thomas Jefferson |
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#7 |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
Posts: 22,698
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Re: Bolt Pattern Question(s) (5 vs. 6)
Nate,... they will interfere with each other.
I stacked my 5-lug and 6-lug backspace tools on top of each other,... and there is always two of the 6-lug holes that interfere with the 5-lug holes.
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#8 |
Tot Roddin'
Join Date: Apr 2005
Location: Mid-MO
Posts: 24,461
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Re: Bolt Pattern Question(s) (5 vs. 6)
Well okay then.... bummer!
I thought I might be able to work more flexibility into the mix. ![]() Thanks guys!
__________________
-Nate ![]() 1969 CST SWB - Project Blank Slate (4.5/6" ECE Static Drop, 6-lug disc brake upgrade (manual), Billet Specialties Vintec 20x8.5 255/40 (F) 20x10 295/40 (R), 250 I-6) 1960 AMF Skylark - Tot Roddin' (Lowered with custom frame; soon to include custom push bar and interior) 2008 Silverado CrewCab 1LT (5.3L, 3:73, 4x4, LT1, Z-71, Towing Package) Last edited by 72BlckButy; 10-09-2009 at 06:17 PM. |
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#9 |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
Posts: 22,698
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Re: Bolt Pattern Question(s) (5 vs. 6)
You know how I feel about 6-lug vs 5-lug on the 67-72 trucks.
Just switch to 5-lug. Then you have a ton of wheel choices!
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#10 |
I really hate wet sanding!
![]() Join Date: Dec 2008
Location: Brookfield, MO
Posts: 601
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Re: Bolt Pattern Question(s) (5 vs. 6)
I would think you would have just as many wheel choices 6 vs 5....all the newer trucks have the same 6 lug pattern that your truck does! By the way what wheels were you wanting to redrill?
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#11 |
Tot Roddin'
Join Date: Apr 2005
Location: Mid-MO
Posts: 24,461
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Re: Bolt Pattern Question(s) (5 vs. 6)
That is still to be determined....
![]() Anyone else have any experience w/ this?
__________________
-Nate ![]() 1969 CST SWB - Project Blank Slate (4.5/6" ECE Static Drop, 6-lug disc brake upgrade (manual), Billet Specialties Vintec 20x8.5 255/40 (F) 20x10 295/40 (R), 250 I-6) 1960 AMF Skylark - Tot Roddin' (Lowered with custom frame; soon to include custom push bar and interior) 2008 Silverado CrewCab 1LT (5.3L, 3:73, 4x4, LT1, Z-71, Towing Package) |
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#12 |
Senior Member
Join Date: Jan 2005
Location: Loveland Co.
Posts: 3,098
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Re: Bolt Pattern Question(s) (5 vs. 6)
That's good to know, I asked my buddy about it and he verified the guy at Moser said it would work. That's kinda scary, you would think someone working there would know something like that!
__________________
Chris 74 Custom Deluxe SWB 350/350/3.73’s 99 2wd Silverado RCSB 5.3/4L60/3.90’s http://www.classictrucks.com/feature...short_bed.html |
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#13 |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
Posts: 22,698
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Re: Bolt Pattern Question(s) (5 vs. 6)
Chris,... I wonder if the guy from Mosers is thinking about "welding up" the 6-lug pattern and changing to 5-lug? (or vice versa)
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#14 |
Senior Member
Join Date: Jan 2005
Location: Loveland Co.
Posts: 3,098
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Re: Bolt Pattern Question(s) (5 vs. 6)
Yeah, we were wondering (hoping) he just didn't understand exactly what my buddy was asking.
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Chris 74 Custom Deluxe SWB 350/350/3.73’s 99 2wd Silverado RCSB 5.3/4L60/3.90’s http://www.classictrucks.com/feature...short_bed.html |
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#15 |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
Posts: 22,698
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Re: Bolt Pattern Question(s) (5 vs. 6)
Nate,..
Here's my 6-lug backspace tool stacked on top of my 5-lug backspace tool. I have marked the tool lug holes that intersect each other. No matter how I position the two patterns,... they cross each other somewhere on the pattern. EDIT: My 5-lug tool has 2 different patterns on it. (5x5 and 5x4.750) This picture shows the 6-lug pattern interfering with one hole on each of the 5-lug patterns. Anyway I try to combine the two,... I can't make it work.
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 Last edited by lolife99; 10-11-2009 at 12:50 AM. |
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#16 |
Tot Roddin'
Join Date: Apr 2005
Location: Mid-MO
Posts: 24,461
|
Re: Bolt Pattern Question(s) (5 vs. 6)
Thanks for the pic Keith!
Debate resolved. ![]()
__________________
-Nate ![]() 1969 CST SWB - Project Blank Slate (4.5/6" ECE Static Drop, 6-lug disc brake upgrade (manual), Billet Specialties Vintec 20x8.5 255/40 (F) 20x10 295/40 (R), 250 I-6) 1960 AMF Skylark - Tot Roddin' (Lowered with custom frame; soon to include custom push bar and interior) 2008 Silverado CrewCab 1LT (5.3L, 3:73, 4x4, LT1, Z-71, Towing Package) |
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#17 |
Happy to be here
![]() Join Date: Mar 2000
Location: Cypress, TX
Posts: 39,023
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Re: Bolt Pattern Question(s) (5 vs. 6)
While this correct in that the 6 lug pattern is the same, it still doesn't give you a big selection of wheels that will fit. Most of the wheels designed to fit the new trucks will have incorrect backspace to fit early 6 lug trucks.
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#18 |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
Posts: 22,698
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Re: Bolt Pattern Question(s) (5 vs. 6)
And the cener bore of the wheel is too small.
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#19 |
Registered User
Join Date: Aug 2008
Location: miami
Posts: 118
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Re: Bolt Pattern Question(s) (5 vs. 6)
what is the most backspacing a 6 lug 67-72 truck could get away with ? i know 4.5 will work but will 6.18 backspacing fit???
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1971 LWB C10 - 5.3/350 1970 SWB C10 - 5.3/4l60 or 6.2/4l80 not sure yet 1964 malibu ss - ls1/4l60 http://67-72chevytrucks.com/vboard/s...d.php?t=382403 |
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#20 | |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
Posts: 22,698
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Re: Bolt Pattern Question(s) (5 vs. 6)
Quote:
And the width of the rim will determine if the wheel will tuck under the fenders or stick outside the wheelwell opening. Last edited by lolife99; 12-27-2009 at 10:16 PM. |
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#21 |
Registered User
![]() Join Date: Jan 2009
Location: marion nc
Posts: 588
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Re: Bolt Pattern Question(s) (5 vs. 6)
nate but why? you have one of the nicest looking trucks on the board
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69 short fleet 350/350 "under construction" 70 short step 307/3 speed |
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