looking for frame dimensions

[GreaseDog]

Looking for a diagram of frame dimensions, including suspension mounting points and body mount locations for an 80 K20. Anybody know where I might find them?

 

[GreaseDog]

I should probably elaborate for those of you not in the know. I'm working with a 1980 K20 frame, mounting a TBI 454 and 80e in it, and mounting a GMT 400 standard cab body on it, and probably building a flatbed. Actually planning on doing a writeup on the frame reconditioning, as it will get complete new suspension, steering, and a brake overhaul.

 

[chengny]

The frame dimensions are all the same across the 10-70 line. That means lengths & widths of structural members and the distances between them. Mounting point locations and thickness of the steel used in the frame will vary. But these spec sheets should be fine for what you are doing. The body dimensions are obviously for the C/K series:

 

[Hammerhandle]

First off, let me apologize for digging up an 11yr old thread.
Maybe i just dont know where to look, but why are 73-80 Frame dimensions so hard to track down? These in this thread are the only ones i've been able to find, but im missing one.
Im looking for axle center line to center of body mount dimension, and im not sure if its the quality level after downloading, but I dont see or cannot find a related dimension.
I am body swapping my 1976 C10 to different chassis, and im trying to determine where my cab will sit, without disassembling my truck first.
For me to make educated guesses and measurements I need that dimension, its my starting point, so im looking for any info or help figuring it out in these docs.

 

[GreaseDog]

First off, let me apologize for digging up an 11yr old thread.

All good man, this is a long stalled project. It's actuality evolved. I've got an 88 R30 cab and an LQ4, but I still haven't put it together. Lol