Right now I have a 2017 with the tow haul package and I pull a 30' TT that Max's out at 7700lbs. My current truck has KO2, load range D tires and they have been great. My question is can I safety use standard load tires? The sl's would give me a better ride when im not towing but I dont.want.to max out the tires when I am towing.

 

Have you ever scaled the truck when towing?
whats your GVWR and GCWR?

 

Load range D. You can run them at lower pressure for comfort when not towing. It's not worth overloading standard tires.

 

Tires will be going on a 25 powerboost (ordered and waiting to be built) and im assuming the GVWR will be 7350 lbs. I have no idea what the GCWR is?
I would like to try a set of Baja boss A/T tires but they only come in SL and E in 275/60r20s. Not sure i want the ride quality of load range E tires....lol

 

I would think on any half ton pickup SL tires should be sufficient... that is, unless you plan to exceed your truck's GVWR, in which case I guess it makes sense to make sure your tires don't fail before some other part of the truck? But I think any SL tire can handle the max GVWR of any half ton, it's somewhere north of 10,000lbs with 4 SL tires on a truck. And they can handle that weight with less air pressure than heavier duty tires, and will therefore ride better all the time.

 

GCWR (Gross Combined Weight Rating) - is the maximum allowable weight of the vehicle and the loaded trailer, including all cargo and passengers, that the vehicle can handle without risking damage.

 

If you’re going with a powerboost, they’re not known to have the highest payloads. Therefore, your tongue weight and anything in the truck will max out your payload LONG before your max out a set of standard load P metric tires.

Since your tongue weight is going to be in the 800-1200 lbs and your PowerBoost could be as low as 1400 lbs payload depending on trim, etc. Make sure that truck is a good fit for a 30’ camper.

Remember, the tongue weight of the camper, weight distribution hitch, anything you put in the truck to bring along, passengers, accessories (tonneau, bed liner, larger tires) all need to fall within the trucks payload number.

You won’t know that number until you’re able to open the door of the truck and see the yellow sticker.

 

A 30', 7700 lb trailer is right at the max any 1/2 ton needs to try to pull and even then you have to choose the truck carefully. It's not about PULLING the weight. It's about how much weight the trucks suspension will handle. Most of the 1/2 tons on the road won't handle that. And the ones that will, won't do it with much more than a driver in the cab of the truck. I'd stay with D or E rated tires. I could tell a significant improvement upgrading to E rated tires with a 4000 lb trailer. The SL tires did OK and I would have been happy with them if I'd not tried E rated tires. After that I wouldn't go back.

 

If you are overloading SL tires then you are overloading the truck itself. If that's your plan then I guess you should get the LT D's.

 

You can easily find P-metric tires in an XL load range.