6 lug. distance lug to lug ?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

67chevemall · 10-30-2008, 10:29 AM

Planning on ordering some wheels (finally)

what is the stock distance on 6 bolt rims lug to lug ? 5.5" ?

What is standard back spacing that would sit the wheel nice??
The truck is on bags.

Cheers

ChevLoRay · 10-30-2008, 11:13 AM

yes, that's the bolt pattern, 6 on 5.5.

As for backspacing, I have a statically-lowered truck with 15's. The fronts are 8-inches wide with a 4-inch backspace. The rears are 10-inches wide with a 5-inch backspace. The fronts clear the lower control arms without any issues.

67chevemall · 10-30-2008, 11:43 AM

I'll have to do some measuring then for back space.....

One more thing does anybody know how many inches the center hubs are...Save me taking the tire off right now.
I think the front is the one that causes the problems....

**raggedjim** · 10-30-2008, 02:12 PM

Most aftermarket wheels for these trucks will have a 4" centerbore. The 78.3mm (about 3.08") wheels will NOT fit over the hubs! I have machined them to fit but it is a pain in the butt...

Just make sure the centerbore is over 3.825 and you fill be fine.

Rg

67chevemall · 10-30-2008, 03:30 PM

3.825 sweet thanks man.

now just have to get this backspacing down......

6 lug 5.5" pattern
3.825 center bore
? backspacing They all seem to be from 4.5 to 6.2

Going with 18X 9-10 " rims
with 275/35/18 rubber

**raggedjim** · 10-30-2008, 03:55 PM

Well, I have 5" backspacing on my rearend and the tires are real close to the inner fenderwell. I would think you would be fine with a 4.5 but a 4 would be better...

Rg

67chevemall · 10-30-2008, 04:14 PM

is that a 10" wide rim?

**raggedjim** · 10-30-2008, 04:23 PM

No. it's an eight, but a backspace is measured from the inside edge so a 5" backspace on an eight and a 5" on a ten will put the inside rim of the wheels in the same place.

Rg

67chevemall · 10-30-2008, 04:30 PM

ah thanks. so measure from the front of the rim inwards.?

**raggedjim** · 10-30-2008, 04:41 PM

No, measure from the inside rim (toward the rearend) to the mounting face

See this link
http://www.classictrucks.com/tech/08.../photo_04.html

Rg

67chevemall · 10-31-2008, 11:10 AM

Thanks guys...again...love this place.

Have my order ready to go!

ZZ4Blazer · 10-31-2008, 11:45 AM

I dont know how much you read on that web page, but I just wanted to make a comment.

The top image is not correct. Rim width is not measured from the overall width. Rim width is measured from the inside measurement of where the tire mounts.

For example, if that rim(as pictured, without the tire) measured actually10" wide total, it should be labled as a 9" rim. Generally, the outer lip contributes 1/2" on each side to the wheel measurement.

However, wheel backspacing is measured to the outermost lip of the wheel, as pictured.

Just wanted to clarify. Hope that didnt confuse you any.

67chevemall · 10-31-2008, 01:33 PM

Thanks this one cleared it all up

67chevemall · 10-31-2008, 01:34 PM

F would be the one ya mean...

67chevemall · 10-31-2008, 01:35 PM

ZZ4 Blazer Akron.....my parents are over on Dewitt Dr...

ZZ4Blazer · 10-31-2008, 04:25 PM

Yes!!! Exactly. Its not as critical with the fullsize being much larger, but I know on my s10, we like to cram as much wheel/tire under them as we can. That 1" difference from that pic being wrong is the difference between fitting, or cutting into the fender horribly.

10-30-2008, 10:29 AM	#1
67chevemall Registered User Join Date: Apr 2003 Location: NB Posts: 3,367	6 lug. distance lug to lug ?? Planning on ordering some wheels (finally) what is the stock distance on 6 bolt rims lug to lug ? 5.5" ? What is standard back spacing that would sit the wheel nice?? The truck is on bags. Cheers __________________ 1968 Chevy C10 307 3ott fleetside 1967 Chevy C/10 V8, 3spd, fleetside lwb.Sold 1967 Chev C/10 step, 383, M21. SOLD

10-30-2008, 11:13 AM	#2
ChevLoRay Old Skool Club Join Date: Jun 2001 Location: Benton, AR "The Heart of Arkansas" Posts: 10,880	Re: 6 lug. distance lug to lug ?? yes, that's the bolt pattern, 6 on 5.5. As for backspacing, I have a statically-lowered truck with 15's. The fronts are 8-inches wide with a 4-inch backspace. The rears are 10-inches wide with a 5-inch backspace. The fronts clear the lower control arms without any issues. __________________ Member Nr. 2770 '96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed. '69 C-10 SWB; 350/TH400 - in limbo The older I get, the better I was.

10-30-2008, 11:43 AM	#3
67chevemall Registered User Join Date: Apr 2003 Location: NB Posts: 3,367	Re: 6 lug. distance lug to lug ?? I'll have to do some measuring then for back space..... One more thing does anybody know how many inches the center hubs are...Save me taking the tire off right now. I think the front is the one that causes the problems.... __________________ 1968 Chevy C10 307 3ott fleetside 1967 Chevy C/10 V8, 3spd, fleetside lwb.Sold 1967 Chev C/10 step, 383, M21. SOLD

10-30-2008, 02:12 PM	#4
raggedjim Senior Member Join Date: Jun 2002 Location: Murray, Kentucky Posts: 3,476	Re: 6 lug. distance lug to lug ?? Most aftermarket wheels for these trucks will have a 4" centerbore. The 78.3mm (about 3.08") wheels will NOT fit over the hubs! I have machined them to fit but it is a pain in the butt... Just make sure the centerbore is over 3.825 and you fill be fine. Rg __________________ Roger '68 Short step - https://67-72chevytrucks.com/vboard/...d.php?t=849675 '69 ('70?) 2wd Blazer '70 GMC Jimmy 2wd '73 Firebird - https://67-72chevytrucks.com/vboard/...d.php?t=853203 Last edited by raggedjim; 10-30-2008 at 02:12 PM.

10-30-2008, 03:30 PM	#5
67chevemall Registered User Join Date: Apr 2003 Location: NB Posts: 3,367	Re: 6 lug. distance lug to lug ?? 3.825 sweet thanks man. now just have to get this backspacing down...... 6 lug 5.5" pattern 3.825 center bore ? backspacing They all seem to be from 4.5 to 6.2 Going with 18X 9-10 " rims with 275/35/18 rubber

10-30-2008, 03:55 PM	#6
raggedjim Senior Member Join Date: Jun 2002 Location: Murray, Kentucky Posts: 3,476	Re: 6 lug. distance lug to lug ?? Well, I have 5" backspacing on my rearend and the tires are real close to the inner fenderwell. I would think you would be fine with a 4.5 but a 4 would be better... Rg __________________ Roger '68 Short step - https://67-72chevytrucks.com/vboard/...d.php?t=849675 '69 ('70?) 2wd Blazer '70 GMC Jimmy 2wd '73 Firebird - https://67-72chevytrucks.com/vboard/...d.php?t=853203

10-30-2008, 04:14 PM	#7
67chevemall Registered User Join Date: Apr 2003 Location: NB Posts: 3,367	Re: 6 lug. distance lug to lug ?? is that a 10" wide rim?

10-30-2008, 04:23 PM	#8
raggedjim Senior Member Join Date: Jun 2002 Location: Murray, Kentucky Posts: 3,476	Re: 6 lug. distance lug to lug ?? No. it's an eight, but a backspace is measured from the inside edge so a 5" backspace on an eight and a 5" on a ten will put the inside rim of the wheels in the same place. Rg __________________ Roger '68 Short step - https://67-72chevytrucks.com/vboard/...d.php?t=849675 '69 ('70?) 2wd Blazer '70 GMC Jimmy 2wd '73 Firebird - https://67-72chevytrucks.com/vboard/...d.php?t=853203

10-30-2008, 04:30 PM	#9
67chevemall Registered User Join Date: Apr 2003 Location: NB Posts: 3,367	Re: 6 lug. distance lug to lug ?? ah thanks. so measure from the front of the rim inwards.?

10-30-2008, 04:41 PM	#10
raggedjim Senior Member Join Date: Jun 2002 Location: Murray, Kentucky Posts: 3,476	Re: 6 lug. distance lug to lug ?? No, measure from the inside rim (toward the rearend) to the mounting face See this link http://www.classictrucks.com/tech/08.../photo_04.html Rg __________________ Roger '68 Short step - https://67-72chevytrucks.com/vboard/...d.php?t=849675 '69 ('70?) 2wd Blazer '70 GMC Jimmy 2wd '73 Firebird - https://67-72chevytrucks.com/vboard/...d.php?t=853203

10-31-2008, 11:10 AM	#11
67chevemall Registered User Join Date: Apr 2003 Location: NB Posts: 3,367	Re: 6 lug. distance lug to lug ?? Thanks guys...again...love this place. Have my order ready to go! __________________ 1968 Chevy C10 307 3ott fleetside 1967 Chevy C/10 V8, 3spd, fleetside lwb.Sold 1967 Chev C/10 step, 383, M21. SOLD

10-31-2008, 11:45 AM	#12
ZZ4Blazer Registered User Join Date: Aug 2004 Location: Akron, OH Posts: 95	Re: 6 lug. distance lug to lug ?? I dont know how much you read on that web page, but I just wanted to make a comment. The top image is not correct. Rim width is not measured from the overall width. Rim width is measured from the inside measurement of where the tire mounts. For example, if that rim(as pictured, without the tire) measured actually10" wide total, it should be labled as a 9" rim. Generally, the outer lip contributes 1/2" on each side to the wheel measurement. However, wheel backspacing is measured to the outermost lip of the wheel, as pictured. Just wanted to clarify. Hope that didnt confuse you any.

10-31-2008, 01:33 PM	#13
67chevemall Registered User Join Date: Apr 2003 Location: NB Posts: 3,367	Re: 6 lug. distance lug to lug ?? Thanks this one cleared it all up __________________ 1968 Chevy C10 307 3ott fleetside 1967 Chevy C/10 V8, 3spd, fleetside lwb.Sold 1967 Chev C/10 step, 383, M21. SOLD Last edited by 67chevemall; 07-09-2010 at 02:26 PM.

10-31-2008, 01:34 PM	#14
67chevemall Registered User Join Date: Apr 2003 Location: NB Posts: 3,367	Re: 6 lug. distance lug to lug ?? F would be the one ya mean...

10-31-2008, 01:35 PM	#15
67chevemall Registered User Join Date: Apr 2003 Location: NB Posts: 3,367	Re: 6 lug. distance lug to lug ?? ZZ4 Blazer Akron.....my parents are over on Dewitt Dr...



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10-31-2008, 04:25 PM	#16
ZZ4Blazer Registered User Join Date: Aug 2004 Location: Akron, OH Posts: 95	Re: 6 lug. distance lug to lug ?? Yes!!! Exactly. Its not as critical with the fullsize being much larger, but I know on my s10, we like to cram as much wheel/tire under them as we can. That 1" difference from that pic being wrong is the difference between fitting, or cutting into the fender horribly.

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