Originally Posted by bgall2
I am making my leap into my dream in pieces. Bought 2013 GMC 3500 SRW Diesel long bed last year and looking at 5'ers with my preference being a Columbus 320rs.
GVWR of that trailer is 14,015 pounds, and it has 19% hitch weight. If you load it to more than 12,000 pounds, (2,280 pounds hitch weight), you'll probably exceed the GVWR of your GMC. In other words, you'll be overloaded.
You probably won't have any problem with having adequate clearance between the top of the truck bed and the underside of the 5er overhang UNLESS
someone has lifted the truck. So that's not your problem. Your most likely problem is overloading your GMC because of too much trailer hitch weight for your SRW pickup.
To be certain you won't be overloaded when you tie onto that trailer, here's the drill:
1] Load the truck up with all the people, and cargo that will be in the truck when towing. Tools, jacks, cooler, pets, campfire wood, whatever.
2] Go to a truck stop that has a CAT scale and fill up with fuel. Then weigh the wet and loaded truck (including driver). If you don't have the 5er hitch installed, then add 150 pounds for the hitch and install kit.
3] Subtract the wet and loaded weight of the truck from the GVWR of the truck. The answer is the max hitch weight you can have without being overloaded.
If your max hitch weight is less than 2,300 pounds, then that 320RS is probably too much trailer weight for your GMC. So look for a 5er with GVWR less than 14,000 pounds, probably closer to 12,000 pounds