Quote Originally Posted by C9x
What, if anything, is wrong with the junkyard parts shaft?

Pays yer money and takes yer choice as the saying goes....
C9
I've aways run the "remanufactured" junkyard driveshafts with never ever a problem and have one in place now. My concerns are several fold. The first being that being a Ford powered car the fuel pickup in the '32 style gas tank is on the right hand side and the engine fuel pump is on the left. I have to cross over the drive shaft with my fuel line - tho protected with a loop and a bunch of steel, want to make it as safe as possible. And, no, I'm not going to use an electric fuel pump tho I do have a new Holley as surplus Secondly, with living here in the frozen tundra of the NE rust belt, my current drive shaft has some rust pits. Thirdly, the trans and diff yokes are an unknown quantity without expensive electronic testing - for instance have they been exposed to a nasty crash in their original vehicle that may have cause deformation or cracks. And last - the machine shop that did the existing driveshaft used the 'wrong' end of the junker I brought them - there is a fair size ding that was not evident until it came time to clean and paint several months later.

So with all that said, peace of mind comes at a $3 to $400 price tag .