Looking for two 3" or two 3.5" Jongbloed outer halves.
Just need a matched pair, either width will do.
This is a width measurment from the bead seating surface to the bolt-on parting surface.
Overall, including the bead outside lip would be about 1/2" more at about 3.5" for what is known as a 3" and 4" overall for a 3.5" outer.
These must have 18 1/4" holes on a 10-1/8" bolt circle.
Careful of the measurement; if you use a tape measure, start at the 1" mark on your tape and go from there out to 11 something for a 10 something measurement.
Also, measuring from hole edge to hole edge is usually easier than trying to eyeball the centers.
I've found additional mag centers and want to build up some more complete wheels to experiment with.
Thanks,
Chuck Voboril
Santa Clara, CA
Fountain Hills, AZ