Axle U-bolts

[Chris Coker <chriscoker@comcast.net>]

Greetings all-
I'm looking into replacing the u-bolts on the rear axle of the race 
car.  They are a couple of inches longer than stock to account for the 
lowering blocks, and I'm having a hard time finding a source.  The 
measurements I've made seem to indicate they're  7/16" diameter 
(possibly 12mm?), the axle tube is 2.5" and the u-bolts are about 7" 
long.

Anyone have any good ideas?

Thanks all-

---
Chris Coker
Royal Oak, MI
1969 1600 Street Car (SPL311-24529)
1966 GP SCCA Race Car www.risensonracing.com