1965 gmc 4000

[kenbob87]

so i picked this truck up a few months back and i and i know little to nothing about it lol it is a 1965 GMC 4000 that is 4wd and has 2.5 ton? axles under it which i am told are factory. the problem is i can find almost no ifo on them other than the rear has a tag on it that says rockwell standard on it and i have seen lots of rockwells just none like these lol. it has a bigblock v6 in it mated to a 5 speed manual trans with granny low. other than that i know nothing about it any info or help on this truck would be greatly appreciated!
here are a few pictures of the truck


as a refrence i am 6 feet tall


here is the tag on the rear axle housing


rear axle from the back


rear axle from the front


rear wheel end


numbers stamped in housing on the front axle on the drivers side next to the pumpkin


numbers on front axle housing on drivers side next to the steering knuckle


front axle from the front


front axle front rear


front wheel end