Project Frankenstein intro and help please

[Bus Ted Knuckle]

So here is the plan...

Take these two trucks and make one 3/4 ton heavy hauler for my trucks and tractors. The K20 has a who knows what year frame under a 81 model cab, clip, and bed. I am going to use the cab and front clip off of the 76 model 'cause the 80 model has been jerry riggified with garbage and nonsence.

I do need help, can anyone identify the axles in the pictures?

More details to come!

[Russell]

The rear is a 14 bolt, and the front is a 3/4 ton 10 bolt.

You might want to check into potential registration problems putting the older cab on. It looks like it is a 2wd C10, which could cause problems when you get it inspected, and its a 4x4. If I was in your shoes, I'd be leaving the 4x4's cab right where it is, and swapping the older front clip, wiring etc over.

The newer cab has a different interior, with the VIN plate in a slightly different location on the dash, so you'll probally want to run the 81's interior. The 81 and the older 76 should have nearly identical wiring, except the 76 will have an amp gauge, while the newer truck will have a volt gauge. Just swap the 76's instrument cluster into the 81, it has the nicer 100 mph speedometer anyways

Bolting the older front clip on is easy too, just take the cowl off the newer cab, and take the wiper linkages out, then swap the older truck's linkages on, and use the newer core support's body bushings on the older core support. Everything else bolts straight up

[Bus Ted Knuckle]

Russell, thanks for the input. We don't have inspections here in the Natural State. I actually have a title for the 76, that is another reason why I will be using that cab. They don't care what you do to modify of restore your vehicle as long as the lights work and your windshield is not cracked.