Here's my 1978 GMC K25 4x4 I bought back in October
It has a 4-bolt main 350, Muncie SM465 transmission, NP250 transfer case, Dana 44 front axle and a 14-bolt full floater rear. Cab is completely shot but the frame is immaculate so I forked over $500 and trailered it home with only 3 wheels turning.