The two nipples on the wheel clamp plates are something to do with hub caps. I've not bothered to find out exactly how and why; I don't need hub caps.

For new spring perches to put the 14 bolt under the AD 1 ton (or 3/4) I really like these.
http://www.ruffstuffspecialties.com/catalog/2-PERCH.html
They're for 2" springs and will let you move the axle forward, or more importantly back, 1" which would center wheels in the fenders and I think allow 14 bolt to use original driveshaft without modification.

Downside is they don't fit the axle tube diameter but can be trimmed, ground, or machined to fit.
Still the best option I could find. (Second best is original Eaton perches but this won't center wheels in fenders or help with driveshaft.)

Last edited by Grigg; 01/23/2016 1:02 AM.
•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-