my uncle has a gmc seirra 6000? and its a gas 4 somethign or so he says manual transmission with it

whati could make out of the vin on the inside of the door was : Tce 616v597032 . any idea?
and if possible theres a chevy k20 70s i think what i coudl some what read off of tis one was : 2GcGk24mxf1107541 or any idea of waht the code really is it has a sufficeint amount of glare and rust to make it hard to figure out
all help is apreciated
~shawn