Suspension swap 1 ton to 1/2 ton frame

[chev75sliverado]

Hello everyone i'm new to this forum because i have questions and i'm looking for answers. First off I own two chevy trucks, the first one is my father's truck that i inherated when he passed away. He bought it brand new in '75. It's a 1975 Chevy 2wd 1/2ton Sliverado stepside. The other truck is mine that I bought 3 years ago. It's a 1979 Chevy 2wd 1 ton (non-dually) Scottsdale Camper special. I bought it to evenully use as a parts truck for my dad's truck .
My question: is the frame on the 1ton the same as the 1/2ton ,
will all the suspension components from the 1 ton fit on the 1/2 ton truck

my reason is that now i have two trucks and don't drive both. I love my dads truck and i like the fact that the 1 ton can haul a heavier payload so why can't i take the 1 ton suspension and put it on a half tuck truck so i can have both in the same package. I know it would be alot of work but i'm willing to do it but i don't want to start into the project if it's not going to mate up and i have to stop because they don't fit. Any help will be great