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#1 |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
Posts: 22,698
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Measuring For Wheels Video,...
I get asked almost daily,... either on the board or via PM, about the correct "offset", or "backspacing" for wheels, for these old trucks.
Since my normal answer is to, "Measure your truck, yourself",... I'm going to use this thread to post any info or store any videos that explain the process. Here's one for a '74 nova, that I found today. The length of the video is kinda long, but it covers all the details.
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#2 |
Registered User
Join Date: Jul 2011
Location: El Campo, Tx
Posts: 1,246
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Re: Measuring For Wheels Video,...
Awesome!
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72 Chevy blue LWB, 99% original Oklahoma truck, 28,000 miles 72 Chevy SWB: http://67-72chevytrucks.com/vboard/s...d.php?t=486626 (Attempt/Mistake #2) 2003 Harley Davidson Dyna Superglide with 2007 Street Bob front end 2000 Ford F350 Powerstroke 4WD CCLB, 310,000 miles running great (STOLEN St. Patricks Day 2014 AND NEVER RECOVERED) 2002 Ford F250 Powerstroke 4WD CCLB (To replace stolen one) Hook em Horns!!! |
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#3 |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
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Re: Measuring For Wheels Video,...
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#4 |
67-72 parts collector,…
![]() Join Date: Nov 2002
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Re: Measuring For Wheels Video,...
This is a great thread from Car Craft.
http://www.carcraft.com/techarticles...t/viewall.html It also shows you how to make a quick tool for measuring. The back wheels can be done easily with a tape measure and a straight edge. The front is a little more complex, because they have to turn. The tool in this article allows you to rotate the rotor to check for interference inside the entire fenderwell, AND, turn the wheels left and right to check for chassis interferences. This is a must for static dropped and bagged trucks, as well as getting a proper fitting wheel on stock trucks. As most know,... the track width of the rear wheels on the 60-87 trucks are narrower, than the front wheels. If you run the same width wheel (front and rear) it is obvious, by just looking at your truck. The front wheels are closer to the fender edge than the rear wheels. Altering the backspacing or using wider rear wheels, will help mask this issue that GM designed in these trucks.
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#5 |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
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Re: Measuring For Wheels Video,...
I used the above Car Craft article to design my own backspace tool.
I made one with the 5x5 Chevrolet truck bolt pattern and the 5x4.75 car pattern. I also have one for the 6x5.5 bolt pattern for the 6-lug trucks. The threaded rod represents the wheel width. All threaded rod is 1" longer than the wheel width since wheels are measured from the actual tire "bead surface". The outside-to-outside measurement of most wheels is approximately 1" wider in total width. (a 20x8.5 wheel will actually measure 9.5" wide)
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#6 |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,966
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Re: Measuring For Wheels Video,...
Nice work on the BS tool.
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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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#7 |
67-72 parts collector,…
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Re: Measuring For Wheels Video,...
Another good thread:
http://www.superchevy.com/technical/...s/viewall.html
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#8 |
Senior Member
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Location: Lordstown, OH / Wentzville, MO
Posts: 870
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Re: Measuring For Wheels Video,...
Good Thread!
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#9 |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
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Re: Measuring For Wheels Video,...
Thanks.
I made it a few years ago, when I was trying to squeeze a big tire under the rear of my '91 S10. (that's why it has the 15" diameter spot on it) I should have made it longer, so I can measure for 22's, 24's and diameter bigger wheels. I had to make the 6-lug version when we measure wheels for Nate's (72BlckButy) 4.5/6 dropped '69 swb.
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#10 |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
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Re: Measuring For Wheels Video,...
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#11 |
67-72 parts collector,…
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Re: Measuring For Wheels Video,...
Measuring for wheel "bolt circle".
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#12 |
Registered User
Join Date: Jun 2008
Location: South Florida
Posts: 11,375
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Re: Measuring For Wheels Video,...
This is great Keith...You my man always take the time to help and i sure appreciate all your advice/help over the last few years..
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Get your facts first, and then you can distort them as much as you please!!!!!. Sylvester's build thread >>>http://67-72chevytrucks.com/vboard/s...ht=big+rebuild |
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#13 |
Registered User
Join Date: Jan 2009
Location: Louisville,Ky
Posts: 5,811
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Re: Measuring For Wheels Video,...
Can we have a sticky for this ?I will say one thing that wheelrite tool is worth buying if you have to custom order rims or running a totally different suspension then stock.
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#14 |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
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Re: Measuring For Wheels Video,...
Bringing this back to the top,...
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#15 |
Registered User
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Location: TX
Posts: 499
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Re: Measuring For Wheels Video,...
http://wheelworksinc.com/index.php?o...=78&Itemid=118
Awesome tool for finding out the correct offset and tire clearance. Posted via Mobile Device
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#16 |
Registered User
Join Date: Jan 2009
Location: Louisville,Ky
Posts: 5,811
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Re: Measuring For Wheels Video,...
I'll ask again can we have this as a sticky please admin.
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#17 |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
Posts: 22,698
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Re: Measuring For Wheels Video,...
andrewmp6,... I doubt this will be a sticky.
I can see it maybe being put in the FAQ section. This board does not use sticky's very often. Posted via Mobile Device
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#18 | |
Happy to be here
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Re: Measuring For Wheels Video,...
Quote:
In the meantime I suggest you subscribe to it.
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#19 |
Registered User
Join Date: Jan 2009
Location: Louisville,Ky
Posts: 5,811
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Re: Measuring For Wheels Video,...
Yeah i kinda forgot about the FAQ lol but if it makes it would help answer a lot of questions on what wheels will fit or not.
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#20 |
Registered User
Join Date: Jan 2011
Location: Tulare, CA
Posts: 733
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Re: Measuring For Wheels Video,...
A LOT of good information here!
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#21 |
Registered User
Join Date: May 2005
Location: Beaverton, OR
Posts: 3,728
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Re: Measuring For Wheels Video,...
Wow, I was just going over this last weekend when trying to see if I can get OE wheels to work on my truck. Thanks for the info and links.
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New Project: 1966 LWB C20 Plans: 1/2 ton conversion Dropmember front Dropmember rear Corvette discs Restored raised bed http://67-72chevytrucks.com/vboard/s....php?p=4295210 |
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#22 |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
Posts: 22,698
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Re: Measuring For Wheels Video,...
Bringing this back to the top, for recent questions.
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#23 |
Registered User
Join Date: Nov 2011
Location: Johannesburg, South Africa
Posts: 354
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Re: Measuring For Wheels Video,...
Awesome thread lolife, must subscribe to this and check back when I am ready for wheels....
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------------------------------------------------------ ZUBZ - C10 "GUS" - JOHANNESBURG, South Africa My 1970 C10 Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=542560 |
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#24 |
Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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Nice thread man thanks for sharing the info.
Here is a nice little tool I have used over and over again. $5.00 at my local tire store. It gives you all the popular wheel sizes and bolt patterns. ![]() ![]() ![]()
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 ![]() Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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#25 |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
Posts: 22,698
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Re: Measuring For Wheels Video,...
Bring this back to the top since the questions keep coming.
I recently used my backspace measuring tool on a buddy's '66 Impala wagon. He wanted to simulate the actual tire height also. So I added to my backspace tool. The 1/4" tubing represents the tire height. It can be adjusted up and down to get the exact height wanted,... and the tubing moves in and out, when the BS number needs to change.
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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