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    Thread: Backspace Tool

    1. #1
      Join Date
      Apr 2005
      Posts
      99

      Backspace Tool

      Has anyone used the wheelrite from Percy's High Performance? I am looking to get a new set of wheels from Budnik and I need the backspacing to be right on the money with the size tire I am wanting to run. I am not real good with just measuring the backspacing with a tape measure so I was thinking about maybe getting this tool



      Thanks
      Brent

    2. #2
      Join Date
      Mar 2004
      Location
      Mid-Michigan
      Posts
      2,764
      Country Flag: United States
      Brent,
      There is no reason to spend a lot of money on a tool you will use one time when the same job can be done with a little research and a 5 dollar tape measure...
      Do a search here on measuring backspacing. I know I have listed a number of sites like Alston or Chassis Engineering that provide worksheets to do exactly what you need to do, for free....
      Once you've done this a few times it gets real easy and you would never even consider buying a "tool" to do the job...
      Just trying to save you some money...
      If you can't find anything let me know and I'll repost the sites.
      Mark
      Mark:
      "Bad Ast" Astro Van. Just because I did it... Doesn't mean it's possible...
      This my Bad Ast thread...
      https://www.pro-touring.com/showthre...roject-Faze-II
      This is my Fotki album...
      http://astroracer.fotki.com/

    3. #3
      Join Date
      Apr 2005
      Posts
      99
      Quote Originally Posted by astroracer
      Brent,
      There is no reason to spend a lot of money on a tool you will use one time when the same job can be done with a little research and a 5 dollar tape measure...
      Do a search here on measuring backspacing. I know I have listed a number of sites like Alston or Chassis Engineering that provide worksheets to do exactly what you need to do, for free....
      Once you've done this a few times it gets real easy and you would never even consider buying a "tool" to do the job...
      Just trying to save you some money...
      If you can't find anything let me know and I'll repost the sites.
      Mark
      Thanks I am going to try and do some measuring with the angle iron and see how that goes. Do you happen to have that link handy


      Thanks allot for the help (I love this place)

    4. #4
      Join Date
      Mar 2004
      Location
      Mid-Michigan
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      2,764
      Country Flag: United States
      This site has everything you need, but, it could be a little clearer...
      http://www.rsracing.com/tech-wheel.html

      This should help with your project... It is an axle worksheet but it makes you do all of the needed dimensions for figuring backspacing/offset also. Good stuff.
      http://www.cachassisworks.com/worksh...structions.pdf

      Holler if you have any more questions.
      Mark
      Mark:
      "Bad Ast" Astro Van. Just because I did it... Doesn't mean it's possible...
      This my Bad Ast thread...
      https://www.pro-touring.com/showthre...roject-Faze-II
      This is my Fotki album...
      http://astroracer.fotki.com/

    5. #5
      Join Date
      Oct 2004
      Location
      Oswego il
      Posts
      938
      Country Flag: United States
      2 pcs of flat stock one drilled to accomodate 2 lug nuts is all you need if you dont trust your tape measure. slot the second pc for a bolt and run it perpendicular for exact measurements.

    6. #6
      Join Date
      Apr 2005
      Posts
      99

      Thanks

      Thanks everyone for the help I took some angle aluminum and drilled it then bolted it up to the hub the worked out real nice. Looks like I have allot more room than I had thought so now it is time to order my Budnik's

      Going to try and get my wheels ordered next week (6 to 8 week build time)

      Thanks again



    7. #7
      Join Date
      Mar 2005
      Location
      Mooresville, NC
      Posts
      110
      Quote Originally Posted by Scarface
      Has anyone used the wheelrite from Percy's High Performance? I am looking to get a new set of wheels from Budnik and I need the backspacing to be right on the money with the size tire I am wanting to run. I am not real good with just measuring the backspacing with a tape measure so I was thinking about maybe getting this tool



      Thanks
      Brent
      .

      Brent - Myself and a friend went together and bought one. I see you have come up with your sizes, but to answer your question and maybe some others it works pretty well. It has a bunch of measurement possibilites and it pretty simple. The only thing strange is they tell you to lay a piece of wire across your desired tire and attach that to the tool. Seems to me you wouldn't have the right tire until you have come up with the right wheel. A little odd but a nice little tool. If anyone is looking at buying one, I would recommend it.

      Mark

    8. #8
      Join Date
      Jul 2005
      Posts
      76
      Quote Originally Posted by astroracer
      This site has everything you need, but, it could be a little clearer...
      http://www.rsracing.com/tech-wheel.html

      Holler if you have any more questions.
      Mark
      The site above has an image of a wheel that shows the backspacing measured from the hub mounting surface to the extreme outer edge of the rim. Is this information correct or is it supposed to be measured to the inside lip of the mounting flange?

    9. #9
      Join Date
      Mar 2004
      Location
      Mid-Michigan
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      Backspacing is measured over the "entire" width of the wheel. The diagram is correct. If you lay the wheel face down and lay a straightedge across the back side of the wheel the backspacing is measured from the mounting face to the straightedge.
      Mark

      Mark:
      "Bad Ast" Astro Van. Just because I did it... Doesn't mean it's possible...
      This my Bad Ast thread...
      https://www.pro-touring.com/showthre...roject-Faze-II
      This is my Fotki album...
      http://astroracer.fotki.com/


    10. #10
      Join Date
      Aug 2004
      Location
      Greenville, IL
      Posts
      262
      Country Flag: United States
      Quote Originally Posted by 62wagon
      .

      The only thing strange is they tell you to lay a piece of wire across your desired tire and attach that to the tool. Seems to me you wouldn't have the right tire until you have come up with the right wheel. Mark
      A lot of people say to buy the tire, then get the rim that the tire man. recommends. Plus most companies will accept a tire return but not as many rim returns. Especially if it is a custom bs.

    11. #11
      Join Date
      Dec 2004
      Posts
      441
      Country Flag: United States
      Percy's is coming out with a plastic verwion of the wheelrite for $89. Still not as cheap as the angle iron method, but possibly easier to work with?

      I have two projects to measure for wheels, and I'm thinking of buying this tool.

      http://www.percyshp.com/producthomewheelrite.html

    12. #12
      Join Date
      Apr 2005
      Location
      Chicago
      Posts
      2,788
      Country Flag: United States
      i have the version from wheel tech and it was worth it's weight in gold. We were able to mount various wheels and turn the wheel back and forth and check clearence on the inner fender. We were also able to move the tire through suspension travel to look for possible conflicts.

      It's amazing how many friends you have one you have one of these in your toolbox.
      marty-mj
      GarageScene.net High Speed Welding KDHotrods RecoveryRoomInteriors WegnerAutomotive Autometer Ride-Tech

    13. #13
      Join Date
      Jan 2002
      Location
      Italy
      Posts
      746
      Hi,

      the plastic wheelrite is only $69.99 from jegs
      #760-01201.
      IO'm thinkin about getting one.
      Have Fun!
      André

      2009 Chrysler 300C Touring.
      3.0 liter V6 diesel, five speed auto, black with light grey leather.
      1968 Chevelle Coupe.
      355cid, Viper T56, Corvette C4 IRS (Dana 44) and Corvette C4 IFS with Porsche 6piston Brembo's.
      1980 Chevy Van (shortie G10).
      355cid, TH350, 8.5" 10bolt posi and Belltech spindles.
      2000 BMW 540i Wagon. (FOR SALE €7K)
      4.4 liter V8, six speed manual, lowered and with Bilstein B8's, silver with black leather.
      2001 Ford Focus Wagon.
      1.8 liter turbo diesel, and a whoppin 90HP.:bsjerk:
      1968 Benelli Motorella
      foldable 50c scooter to go in a car trunk.
      2x '90s Yamaha TZR 2stroke bikes.
      one 125cc one cylinder and one will be 350cc two cylinder.

    14. #14
      Join Date
      Jan 2002
      Location
      Italy
      Posts
      746
      I ordered one from jegs today, I'll have it in a month or so
      Have Fun!
      André

      2009 Chrysler 300C Touring.
      3.0 liter V6 diesel, five speed auto, black with light grey leather.
      1968 Chevelle Coupe.
      355cid, Viper T56, Corvette C4 IRS (Dana 44) and Corvette C4 IFS with Porsche 6piston Brembo's.
      1980 Chevy Van (shortie G10).
      355cid, TH350, 8.5" 10bolt posi and Belltech spindles.
      2000 BMW 540i Wagon. (FOR SALE €7K)
      4.4 liter V8, six speed manual, lowered and with Bilstein B8's, silver with black leather.
      2001 Ford Focus Wagon.
      1.8 liter turbo diesel, and a whoppin 90HP.:bsjerk:
      1968 Benelli Motorella
      foldable 50c scooter to go in a car trunk.
      2x '90s Yamaha TZR 2stroke bikes.
      one 125cc one cylinder and one will be 350cc two cylinder.

    15. #15
      Join Date
      Aug 2006
      Posts
      381
      Country Flag: United States
      I got a link here that illustrates all the measurements you need , backspacing, offset, etc..I hope that helps.. GOOD LUCK

      http://www.customtacos.com/tech/index.php?article=40

    16. #16
      Join Date
      Nov 2005
      Location
      Farmington Hills, MI
      Posts
      1,038
      I have been looking for one of these tools for a month.
      Thanks
      JEFF SHORTT
      -IDEAL STEEL


    17. #17
      Join Date
      Jun 2006
      Posts
      70
      Quote Originally Posted by Scarface

      Going to try and get my wheels ordered next week

      So, what kind of Budniks are you getting? What's the price?
      http://www.cardomain.com/ride/2389193/1
      '66 Chevy II Wagon (construction under way!)
      '60 VW Bug, Ragtop
      '03 Subaru WRX
      '05 Saturn VUE
      Does the name Pavlov ring a bell?




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