Stud pattern identification help please...

[Heydon]

Hi


Total newbie to trucks and loving the learning curve but miss knowing every tiny detail about what I am driving (lifelong VW owner/ racer).

I need to space my rear wheels by 5mm but cant identify the bolt pattern, other than its not 120.7 x 70.3 which I thought.

Pics attached show a template ( a pizza had to sacrifice itself to help!) and a 120.7 space that doesnt fit.

Any advice? Many thanks

[GMDad]

Could be a 5 x 5 bolt pattern. You need to measure from one stud directly across to an imaginary arc between the other 2 studs at 180 degrees. You can not measure from one stud to the other. You are looking for a bolt circle diameter which is a circle going thru all of the studs and then measure across it.
Hope this helps you out.

[Heydon]

Thank you.

It does appear to be 5 x 127 stud pattern.

I am just trying to now identify the hub centre diameter as the best spacers seem to be hub centric. They might be 78.1 or 78.3 and I want to be sure.

I have worked out where the axles were purchased so will make contact with them to see if they can help.

Thanks again.

[vince1]

Well yes, if you have a centering hole in the axle flange it would be easy to measure out to the center of a stud and double it. Any of the old stuff built here in Canada or US is commonly measured in inches though and mm numbers don't mean much to us in a cross reference. Now if I were to find out what my wife's Volvo or my VW has I would probably be looking at mm's.

Back in the days of riding English Nortons and Triumphs I had a set of Whitworth tools. Can't remember what that was about except that they were different from anything else. Sure do miss the 67 Norton Atlas.

[63 & 64 Bowties]

..

[GMDad]

Never seen a chart like that before but makes sense when you measure them that way. Now if I can only remember that way the next time I need to measure a bolt dia. lol

[Heydon]

Really helpful diagram thank you, and will buy some vernier gauges tomorrow for the centre lug.

Vince1- Will remember to use imperial next time lol. its funny, we have MPH and MPG here but then use metric for so much other stuff. We have to have metric and imperial tools as most of the go faster stuff for VWs is american. Some nice looking bikes you had. ;-)