I'm a new vintage AK owner and have been dealing similar questions recently. I can pass on a little info I learned here, specifically about the axle weights and GVWR. This is is NOT my personal knowledge, but things I gleaned from folks who actually know what they're talking about!
The GVWR is the total weight your vehicle is rated for. There's no way to change that rating, though there are overload springs and other things designed to help your truck handle a big load more safely. Having said that, your GVWR is the max your vehicle is intended to safely carry.
The individual axle rating is the max that is allowable on each axle, so if your GVWR is 8800 and your rear axle is rated for 6084, that just means you could distribute weight as follows: no more than 6084 on the rear (and the remainder on the front axle), the total not to exceed the GVWR. So, the rear axle rating being higher doesn't make the overall GVWR higher, it just tells you the truck is designed to be safe at a maximum rear axle weight of 6084. Make sense? in other words, although the truck is designed to carry 8800 lbs, you can't put all that weight on the rear axles and still be safe. If you want to wade through other discussion of this issue, you can check out my thread "Just got a 8 ft NCO and have tons of questions". The guys have been very informative about lots of stuff in that thread.
Do you have weight for your truck without the camper? I did not have that info, and I learned something interesting. If you do a free VIN search online, it will tell you among other things the curb weight of your vehicle. I learned from an insurance adjuster that curb weight is the weight of your vehicle with appropriate fluids and half a tank of gas (excluding any extras such as bed liner, etc). Dry weight is as it came off the assembly line, so no fluids at all. That's not directly related to your question, but it helped me do some figuring since I did not have an unloaded weight for my truck.
I am in a somewhat different situation than you because my truck is a half ton and my camper is an 8ft NCO. I haven't gotten a scale reading on it yet, but I'm running pretty close to the line as well. The 1970 8 ft NCO was advertised as being designed for a half ton or 3/4 ton. We'll see what my actual numbers are when I get there!
Edited by Grrlartist, 01 February 2017 - 04:57 AM.