Little bit of back story here:
I was rumbling around the forum a while back asking about rear end swaps. Well I found a 3.07 from a 69 in Mt. Airy, or TV's Mayberry, of all places, and swapped in it.
But given the hassle it was to track that one down, I didn't shake loose of the original. I'm rebuilding it in my bedroom right now, got it stripped down to the housing.
It looks like everything in the way of rebuilding one of these rear ends is just 30-spline/post 65 friendly these days, including the stuff from LMC Truck. But I'm saving the old 17-spline axles, and I just picked up an old stock 4 series 17-spline posi unit.
These bearings are really the only hangup I'm seeing now. One of the axles has a groove in it and will need the repair bearing. I'll give National Seal a call tomorrow and see what if anything I can dredge up.
In the meantime, advice and part numbers from anyone who's been into one of these 64 rear ends is appreciated.
One final thought; I like the 3.07 gears in this 69 rear I'm running now, and I'd like to put the same in this old one I'm rebuilding. It's a no-go w/ the 4 series posi I just pick up though. However, I've picked up from another forum that there's thin 3.08s available that'll go on the 4 series, but so far that looks like a myth. Any thoughts?
