Thanks, Mr. Bill.
Yes, the research is not complete yet, so I will keep asking the questions until I get enuff of the right info to move forward on the project. I figure keeping the 6-lug pattern makes sense as the truck came with wagon wheels. I have previously owned a '72 K-5 Blazer, and this will be the rear axle of choice to acquire.
The new linkage idea with the existing front axle setup may be best as will the roller bearing conversion set. I have LMC catalogs handy. Have posted a want ad for the stock steering box, column and wheel, to swap the box and rear fenders for them. I will be building a short-sided dump box for this.
Also, I prefer to assemble this GMC Truck with just GM parts.
And I suppose I will eventually post an ad for the torque tube axle, minus the drums.

Last edited by StephenA; 08/14/2009 1:55 PM.
1965 Olds F85 wagon
1969 Olds Cutlass
1965 Falcon Van
1969 El Camino
1972 GMC 3/4T
1972 K5 Blazer
1971 C10
1976 Suburban
1978 Suburban
1930 F**d AA Stake
1989 CK3500 2WD
2000 CK3500 4WD
1953 GMC 3100

1] *Note* All drawings are subject to engineering changes at any given time without notice of: barometric pressure, wind patterns, caffiene, or written authorization of the female.
2] Cash for Clunkers: You can have my truck, after it has turned into a pile of rust in the driveway.