Tow rig build · 2021 Ram 2500
The Ram 2500 Tow Rig
A 2021 Ram 2500 kept at stock height with rear airbags, the right fifth-wheel hitch and a hard-folding cover — dialed for level, confident towing rather than trail looks.
Based on a Ram 2500
The spec sheet
| Truck | 2021 Ram 2500 |
|---|---|
| Built for | Tow a heavy fifth-wheel and a loaded gooseneck all season without the squat, sway and wandering that come from a soft or lifted setup. |
| Lift / stance | Stock height + airbags |
| Tires | 275/70R18 · 33.2" diameter |
| Wheels | 18x8 · Factory offset |
| Cover | Hard-folding cover |
| Bed | 6.4 ft |
Why it's built this way
- Stays at stock ride height on purpose — a lift would raise the hitch and hurt stability under a heavy trailer.
- Rear airbags level the truck under tongue/pin weight so the headlights and braking stay where they belong.
- A hard-folding cover locks the bed but folds forward to clear a gooseneck or fifth-wheel hitch.
Dial in this build
Every spec, pre-loaded into the calculator that checks it for your truck.
This build — frequently asked
What lift and tires are on this 2500 build?
This 2021 Ram 2500 runs stock ride height on 275/70R18 tires (about 33.2" overall diameter), with 18x8 wheels at Factory offset and a Hard-folding cover.
What size tires fit a 2500 like this?
This build keeps a 33" load-rated (275/70R18) close to stock for capacity and ride. Use the Tire Size Calculator to compare it to your current size and check speedometer error.
Which tonneau cover suits this 2500?
This build uses a Hard-folding cover. The right cover depends on bed length, how you load the bed and features like bed rails — run the truck through the Fitment Checker to confirm which cover types fit.
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