I know this isnt a hot rod, but I knew that you guys would be the ones who would know...

Ive got a 1969 Nissan Patrol I bought back in April. The rear axle and suspension was MIA. I found another rear end that will swap in from another truck with no problems. I found a set of leaf springs with the same dimensions, too. But the old Patrol uses 5/8" bolts in its suspension and the springs I got uses 9/16" bolts. The bushings are all rotted and need replacement. So this brings me to the question, where can I get leaf spring bushings with a custom ID as well as a custom OD?

I have looked ALL OVER!!

Thanks in advance, Jon