[Tx Firefighter]

Column won't fit very well. The Suburban is going to have the ignition key, wiper control, and dimmer switch all on the column which your truck does not.

I second what lo72 said about the many parts. You can do a whole front crossmember swap to get all the disc brakes, sway bar, power steering, everything.

The rearend swap is slightly involved. Assuming you have a coil spring rear suspension, you will need to remove the spring pads from the Suburban and weld the proper ones in their place. You will also need to buy a super track bar setup from ECE or CPP for about 100 odd dollars.

Be sure and remove the entire engine wiring harness from the Suburban along with fuel lines, tank, and computer under the dash. That stuff is worth good bucks to 73-86 guys to convert their truck to EFI.