Hey Glen, I have to ask....this is a 1/2 ton truck optioned with an SM420 ,or do you think one of the previous owners did a custom install ? Anyway, you may able to substitute for the carrier bearing and support bracket if you know the outside diameter of the splined shaft that fits inside the carrier bearing.Example -
www.classicparts.com , part number 92-905, 1.3780 ID. You'd have to fabricate a "riser" to go from the support bearing housing to the frame mount. Wouldn't be stock, but so what, right? If you can take a picture of the entire driveshaft I can do some more research or if you want you can PM me I'll give you my contact information. Hope this helps ! I know the struggle, but in the end its worth it!
