Just curious if anyone has ever machined their own wheel spacers. I need a set of 2, 2.25" spacers and 2, 2.5" spacers and after looking at them they appear to be fairly simple with the exception of two things. One is getting the right taper on the lug nut seats, and the other is finding the correct diameter for the lug stud holes. I assume the lug stud holes don't need to be splined or anything, just the right size for a tight press fit. I'm going to my local metal supplier to see about getting a 6.25" diameter bar of 6061 aluminum. Any input is appreciated thanks.

 

Im not sure how wheel spacers are made, but Id go by an actual spindle. the lug studs need to be splined into the spacer. Cuz you might overtighten a lug nut, and actually spin the stud in the spacer. all u got to work with is friction, you dont actually have another force (the splines) holding it into place. But then again, Im not a machinist

 

For the price of having some made, Ebay yourself 2 sets and be done with it. I bought a set of 2.5's for 85$ last year, nice big studs and a beefy spacer, very professional machine work.

 

I dont think I would mess with those unless you really know what you are doing. They are not that exspensive. Have heard to many horrors stories of cheap spacers cuasing major problems.

 

www.skulte.com
Im getting my spacers from him..

 

It would be hard as hello to get the bolt pattern right. It would cost more in time and materials then what you would pay to just buy them.

 

If you're planning on machining them yourself manually, make sure you've got access to a very accurate rotary table, a rigid lathe and mill, and proper dimension cutters and reamers, and have instruments that can measure down to .0005 (a sheet of paper is about .003" thick, and one of my hairs is .0015" thick, to give an idea of the precision required).

If you don't have the proper measuring tools, it can be difficult to get the counterbores and conical seats perfectly concentric. CNC machining them isn't rocket science, but you do have to make them to the proper goemetric tolerances to ensure proper balance at high speeds. The diameter for the knurl is quite specific as well, depending on what studs you decide to use. Above all, please make sure you can do it safely, and not risk losing a wheel at highway speeds.