question about van rallies - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Dapper Dan · 05-02-2009, 10:28 PM

I would like to run rally wheels and have been thinking about the van wheels for the front. http://baltimore.craigslist.org/pts/1151377952.html

I searched the site and found in a thread that they should have 3" backspacing. I'm not good with wheels and backspacing so I guess what I was wondering is will they sit far in the fender or will they still be near the edge

Also if the wheel is 6.5" wide with 3" backspacing does that mean I can measure 3.5" from face of rotor and that is where the edge of the rim should be? Thanks for the help

jdurant · 05-02-2009, 10:44 PM

The outer edge of the wheel would be 3.5", or 4" inches from the mounting pad of the rotor depending on how backspacing was measured. Because a 6.5" rally actually measures 7.5" from edge to edge. So your 8" rally should measure 9" wide.
Just so you know they did make a 7" rally, therefore it actually measures 8". And the extra 1/2" is on the outside. They are kinda hard to find, but I think that would make for the best combo. I think they were on some of the earlier trucks and I think I have seen them on a few vans. Supposedly all rally wheels are stamped on the inside with a size.

Pyrotechnic · 05-02-2009, 11:02 PM

Sounds about right for a 6.5" wide wheel. Makes a good skinny wheel for the front if you are into that look.

SCOTI · 05-02-2009, 11:32 PM

Here's some 6.5" van ralleys on the front to give you an idea where they 'sit' vs. the outer fender-lip. The rears are 8" truck ralleys.

jdurant · 05-02-2009, 11:36 PM

nice pic!

**old Rusty C10** · 05-03-2009, 11:33 AM

on my 86 i had i did just that two skinny ones on front and two wides on on the rear and it looked fine,,

LONGHAIR · 05-03-2009, 12:51 PM

"Backspace" is the distance from the edge of the rim to the flat area where the wheel mounts to the rotor.....from the back side

"Off-set" is how far that same flange is away from the exact center of the wheel.

So a 6" wheel and an 8" wheel with the same backspace would have different off-set.

Her is a quick little diagram to show it better

Dapper Dan · 05-03-2009, 12:53 PM

Thanks everyone Scoti that picture is just what I was looking for. I think I will go for them 30 bucks is cheap, and right now my rear wheels look narrower than the front something I want to change with the next set.

Turbo85GMC · 05-03-2009, 03:12 PM

Quote:

Originally Posted by SCOTI

Here's some 6.5" van ralleys on the front to give you an idea where they 'sit' vs. the outer fender-lip. The rears are 8" truck ralleys.

If you don't mind my asking, how much of a drop is that in the front? And what size tires?

SCOTI · 05-03-2009, 03:18 PM

Quote:

Originally Posted by Turbo85GMC

If you don't mind my asking, how much of a drop is that in the front? And what size tires?

Front is 3" Bell tech spindles w/1-coil cut from the stock V8 springs (lower a-arm requires trimming w/a 15" wheel) & 215-70-15's. The rear is a flip kit on a HD 8-leaf spring pack for a true 6" plus Bell Tech 2" shackles & 255-70-15's.

05-02-2009, 10:28 PM	#1
Dapper Dan Registered User Join Date: Mar 2009 Location: Middle River, MD Posts: 171	question about van rallies I would like to run rally wheels and have been thinking about the van wheels for the front. http://baltimore.craigslist.org/pts/1151377952.html I searched the site and found in a thread that they should have 3" backspacing. I'm not good with wheels and backspacing so I guess what I was wondering is will they sit far in the fender or will they still be near the edge Also if the wheel is 6.5" wide with 3" backspacing does that mean I can measure 3.5" from face of rotor and that is where the edge of the rim should be? Thanks for the help

05-02-2009, 10:44 PM	#2
jdurant Senior Member Join Date: Dec 2007 Location: Houston, Texas Posts: 679	Re: question about van rallies The outer edge of the wheel would be 3.5", or 4" inches from the mounting pad of the rotor depending on how backspacing was measured. Because a 6.5" rally actually measures 7.5" from edge to edge. So your 8" rally should measure 9" wide. Just so you know they did make a 7" rally, therefore it actually measures 8". And the extra 1/2" is on the outside. They are kinda hard to find, but I think that would make for the best combo. I think they were on some of the earlier trucks and I think I have seen them on a few vans. Supposedly all rally wheels are stamped on the inside with a size. __________________ Joseph 87 Turbo Buick 92 5.0 Mustang coupe 87 GMC Sierra SWB 82 Chevy K5 Blazer 2wd

05-02-2009, 11:02 PM	#3
Pyrotechnic Registered User Join Date: Feb 2007 Location: Austin, TX Posts: 3,930	Re: question about van rallies Sounds about right for a 6.5" wide wheel. Makes a good skinny wheel for the front if you are into that look. __________________ 1977 GMC Sierra Grande

05-02-2009, 11:32 PM	#4
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,132	Re: question about van rallies Here's some 6.5" van ralleys on the front to give you an idea where they 'sit' vs. the outer fender-lip. The rears are 8" truck ralleys. Attached Images __________________ 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.* Last edited by SCOTI; 05-02-2009 at 11:33 PM.

05-02-2009, 11:36 PM	#5
jdurant Senior Member Join Date: Dec 2007 Location: Houston, Texas Posts: 679	Re: question about van rallies nice pic! __________________ Joseph 87 Turbo Buick 92 5.0 Mustang coupe 87 GMC Sierra SWB 82 Chevy K5 Blazer 2wd

05-03-2009, 11:33 AM	#6
old Rusty C10 Robert Olson Transport Join Date: Oct 2002 Location: recent transplant to NC USA Posts: 20,345	Re: question about van rallies on my 86 i had i did just that two skinny ones on front and two wides on on the rear and it looked fine,, __________________ Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!!

05-03-2009, 12:53 PM	#8
Dapper Dan Registered User Join Date: Mar 2009 Location: Middle River, MD Posts: 171	Re: question about van rallies Thanks everyone Scoti that picture is just what I was looking for. I think I will go for them 30 bucks is cheap, and right now my rear wheels look narrower than the front something I want to change with the next set.

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