Weight the truck then the rear axle.
Check the sidewalls of the tires for the max load.
Tire weight X2, minus the rear axle weight.
I think you'll be good to go unless someone put lower rated tires on the truck.
2012 Chevy 3500HD Dually 4X4
Crew Cab long bed 6.0 gasser 4.10
06 Hitchiker II LS 29.5 FKTS
GVWR's change over time to appease both the marketing 'King of the Hill' stuff
and folks demand ever bigger trailers/trucks/etc
My 1980 Silverado C10 is a 'Big Ten', which was the 'heavy half' of it's day
GVWR is 6,200 lbs. A 3/4 ton of that era was 7,600 GVWR
Today's regular half ton's are in the 7,600 GVWR range and the 'heavy half' of
today is in the 8,100GVWR range
Best to use the GVWR in reference, as using marketing stuff bits if you don't
also add the suffix's and the era it was built
Agree SoCal knows his trucks...albeit haven't seen much in regards to Dodge...yet
-Ben Picture of my rig
1996 GMC SLT Suburban 3/4 ton K3500/7.4L/4:1/+150Kmiles orig owner...
1980 Chevy Silverado C10/long bed/"BUILT" 5.7L/3:73/1 ton helper springs/+329Kmiles, bought it from dad...
1998 Mazda B2500 (1/2 ton) pickup, 2nd owner...
Praise Dyno Brake equiped and all have "nose bleed" braking!
Previous trucks/offroaders: 40's Jeep restored in mid 60's / 69 DuneBuggy (approx +1K lb: VW pan/200hpCorvair: eng, cam, dual carb'w velocity stacks'n 18" runners, 4spd transaxle) made myself from ground up / 1970 Toyota FJ40 / 1973 K5 Blazer (2dr Tahoe, 1 ton axles front/rear, +255K miles when sold it)...
Sold the boat (looking for another): Trophy with twin 150's...
51 cylinders in household, what's yours?...
In 1988 GM changed body style and got stupid with GVWR's for some reason. My 1988 GMC 2500 standard cab 2 w/d LB 5.7 gasser only had a 7200lb GVWR and a 3.42 rear axle.......I don't know what model year they got back to 8600# GVWR for the 2500's.