If you are interested, take a look through the hundreds of images I have rebuilding my 55.2 Chevy with 58 NAPCO running gear and PTO winch. It was all a bolt up affair with about 6 holes that need to be drilled. The two wheel drive truck that starts out the library is what the dealers bolted the 4x4 system to.
55.2 Chevy NAPCO Bill,
I saw a truck with the Colman 4 wheel drive system on Ebay about a year ago and it was the only one I have ever seen. It looked like a heavy duty system.
