Reply to "Axle repair question"

I'm no expert- the only place I'm at all familiar with is "Driveline Specialties" in San Jose, CA. They routinely balence driveshafts & halfshafts, make up special driveshaftsshafts for racers or fabricate our "Spicer" halfshafts and even stock "weird" parts in their shelves, such as adapter u-joints that are configured for Ford cups on one pair of crosses and GM cups on the others, for engine & tranny-swappers. I'd look in your local yellow pages for such a place, remembering that most halfshafts are not specially balenced at all, even for full-on race cars. The effort may not be needed; Id assemble them as suggrested & put them in the car & try them. No vibration means you saved $75-100. Vibration means they DO need rebalencing and you wasted a few hrs trying them- no big deal in my neighborhood.