SC Highway 90 runs 23 miles as a two-lane corridor from Red Hill in Conway all the way to Little River, and according to the Grand Strand Area Transit Study, it's seen more growth and traffic pressure than just about any other stretch in Horry County. When you're pulling a boat, an enclosed cargo trailer, or a camper through it, a sloppy setup that feels manageable on an empty parking lot turns real on you the moment a line of cars stacks up behind you on a two-lane.
The short answer has three parts. Choose the Chevy truck that fits your load, confirm three numbers before you hook up (trailer weight, tongue weight, and payload remaining), and run through the six-step setup below before you ever leave the driveway.
The 2026 Silverado 1500 is on our lot right now, and it's the truck we'd point most readers toward first, though the right pick genuinely depends on what you're pulling. Let us walk through both the selection and the procedure.
What You Need Before You Start
Before you touch a hitch ball, pull four numbers off your specific truck and your specific trailer, because the towing rating on the window sticker is only the ceiling under ideal conditions and what you can *actually* tow is whatever's left after passengers, gear, and options eat into that number. Treat the sticker as a starting point, not a promise.
| What to find | Where to find it | Why it matters for SC 90 |
|---|---|---|
| Truck's maximum towing rating | Door-jamb certification label (not the brochure) | Your specific build may rate lower than the advertised max |
| Trailer's loaded weight | Weigh station or a certified scale | Empty ratings don't reflect coolers, gear, or water tanks |
| Tongue weight | Tongue scale or certified scale | Must be 10-15% of loaded trailer weight (Chevrolet 2026 Trailering Guide) |
| Truck's remaining payload | GVWR minus actual curb weight plus occupants | Tongue weight counts against payload, not just tow rating |
Once you have those four numbers, the setup steps below go quickly. If you haven't weighed your trailer loaded, do that first. Guessing is how people end up with a swaying trailer on SC 90 at 55 mph with no room to correct.
How to Set Up Your Chevy Truck for a Highway 90 Tow
The procedure below is the one we walk customers through, and it applies whether you're pulling a pontoon from Conway toward Little River or hauling an enclosed trailer to a job site off SC 22. The steps stay the same; the numbers change by truck.
Step 1: Confirm your truck and engine match your load.
Three Chevy trucks cover the trailer weights you'll encounter on Highway 90. Chevrolet lists these as the properly-equipped ceilings. Verify your specific configuration on the door-jamb label.
| Truck | Engine | Max Towing (properly equipped) | Best for on SC 90 |
|---|---|---|---|
| 2026 Colorado | 2.7L TurboMax | 7,700 lbs | Jet ski, jon boat, small utility trailer |
| 2026 Silverado 1500 | 5.3L EcoTec3 V8 | 11,300 lbs | Mid-size camper, pontoon, enclosed cargo trailer |
| 2026 Silverado 1500 | 6.2L EcoTec3 V8 / Duramax 3.0L diesel | 13,300 lbs | Larger travel trailer, heavy equipment |
| 2026 Silverado 2500 HD | 6.6L Duramax Turbo-Diesel V8 | 20,000 lbs conventional / up to 22,420 lbs gooseneck | Gooseneck, commercial equipment, fifth wheel |
The Colorado comes with a real trade-off. Its 7,700 lbs covers a surprising range of recreational trailers, and it's a nimbler truck in tighter spots. What it gives up is headroom. Tow within 80 percent of your rating and you'll have a buffer; push into the 90-plus percent range regularly and the Silverado 1500 is the smarter call.
Step 2: Check the door-jamb label, not the window sticker.
Plenty of folks jump from here straight to step three, and that's the slip-up. Your truck's actual tow and payload rating for its specific configuration (engine, cab style, bed length, axle ratio, options) lives on the Trailering Information Label on the door frame. Chevrolet's 2026 Trailering Guide is explicit that the door-jamb label is the authoritative number for your unit, not the brochure max. Wheel size alone can change the 2500 HD's conventional tow ceiling significantly. Two minutes here prevents a miscalculation you can't fix roadside.
Step 3: Calculate and verify your tongue weight.
Tongue weight is the downward force your trailer's coupler puts on the hitch ball. Per Chevrolet's 2026 Trailering Guide, for conventional towing that number should fall between 10 and 15 percent of the loaded trailer's total weight. A 6,000-pound loaded trailer needs 600 to 900 pounds of tongue weight. Too light and the trailer pushes the rear of the truck around; too heavy and the front wheels lose contact with the road. A tongue scale from any hardware store gives you a real number in about two minutes. No guessing.
On heavy equipment trailers, running across a certified scale before every long haul is cheap insurance. The habit keeps you legal and safe on a two-lane.
Step 4: Match your hitch class and check the ball height.
Use a hitch rated for your trailer's tongue weight. Chevrolet's published guidance is clear that for tongue weights above 600 pounds on most Silverado configurations, a weight-distributing hitch with sway control is required. (For the 2500 HD, the threshold is different. Check the guide specific to your model year.) Ball height matters too. When your trailer is hooked up and level from front to back, the setup is right. Tongue-high or tongue-low means you're putting uneven stress on the hitch and the trailer frame, and that shows up as sway on longer highway stretches.
Step 5: Connect the 7-pin connector and test every light.
Every Chevy truck from the Colorado up comes with a 7-pin sealed connector when you add the trailering package. Plug in and walk the trailer. Check left turn, right turn, brake lights, running lights, hazards. Do it before you leave the driveway. SC 90 sees heavy traffic between Conway and the SC 22 interchange, and a trailer with no brake lights in that kind of traffic is a problem that gets expensive fast.
Step 6: Load the trailer and set the brake controller gain.
Chevrolet's trailering guidance recommends placing about 60 percent of your cargo weight over the front half of the trailer, with the load distributed evenly side to side. Heavy items low and centered, lighter items toward the rear. Once loaded, set your in-cab electric trailer brake controller (the Silverado 1500 and 2500 HD both offer an integrated unit) and do one slow brake test in a parking lot before you hit SC 90. Adjust the gain until the trailer brakes engage firmly without locking up.
Before You Pull Out: A Quick-Reference Recap
The recap below is the one we'd hand you at the counter before you leave, so you can run the whole setup from memory, though none of it replaces reading the door-jamb label for your own build. Print it, take a photo, keep it in the truck.
- Step 1: Match truck and engine to your trailer weight using the table above.
- Step 2: Read the door-jamb Trailering Information Label for your specific build's rating.
- Step 3: Weigh your loaded trailer. Calculate tongue weight (10-15% of loaded weight). Verify it with a tongue scale.
- Step 4: Confirm hitch class. Use a weight-distributing hitch with sway control if your tongue weight exceeds 600 lbs (Silverado 1500; verify your threshold on the 2500 HD or Colorado).
- Step 5: Connect 7-pin plug. Walk the trailer and test all lights before leaving.
- Step 6: Load 60% of cargo over the front half of the trailer. Set brake controller gain and do a slow-speed brake test before pulling onto SC 90.
- Always: Keep your loaded trailer's weight to 80 percent of your rated ceiling or below for the most stable tow on a two-lane highway like SC 90.
If you're not sure whether your trailer and your truck's configuration line up, bring both to our service team. We can check the door-jamb label with you, look at your hitch setup, and confirm the brake controller is calibrated right before you head north on SC 90.
Schedule a Pre-Trip Service Check
Getting the right truck under you starts before any of this. If you're in the market and towing is a real part of how you use your truck, let's talk specs and configurations on the lot. The difference between a Silverado 1500 with the 5.3L and one with the Duramax diesel is real, and it shows up on that stretch between Conway and Little River.
*By the Palmetto Chevrolet Team | October 2026*
*All towing and payload ratings are for properly equipped vehicles. Your specific truck's certified rating is on the door-jamb Trailering Information Label. Verify your configuration's numbers before towing. Tongue weight and load calculations are your responsibility as the operator.*
Frequently Asked Questions
What is the maximum towing capacity of the 2026 Silverado 1500?
Chevrolet rates the 2026 Silverado 1500 at up to 13,300 pounds when properly equipped with the Duramax 3.0L turbo-diesel or the 6.2L EcoTec3 V8 and the Max Trailering Package. The 5.3L V8 tops out at 11,300 pounds, and the 2.7L TurboMax reaches 9,500 pounds. Your certified number is on the door-jamb label.
How much can a 2026 Silverado 2500 HD tow on a conventional hitch?
Chevrolet rates the 2026 Silverado 2500 HD at up to 20,000 pounds on a conventional hitch with the 6.6L Duramax turbo-diesel and Max Trailering Package on a properly equipped Crew Cab. Gooseneck configurations can reach 22,420 pounds. The 6.6L gas V8 reaches up to 18,700 pounds.