Texas 4x4 by Texas Tops (956) 682-1148

Undercoating & Rust Protection for RAM 1500 in the Rio Grande Valley

Coil-spring rear suspension makes it the best-riding full-size truck.

Get a free quote (956) 682-1148
37 years in the Valley 3 locations Year-confirmed fitment

Fitting your RAM 1500

The RAM 1500 uses coil springs in the rear instead of leaf springs, which changes how lift kits and air-bag helpers are installed. The RamBox bed storage option changes tonneau and cap fitment. The Rebel and TRX trims are factory-lifted, and the TRX is much wider, so clearance parts differ.

What fits your RAM 1500

  • Three bed lengths — 5.7, 6.4, and 8 ft
  • Caps and tonneaus sized to your bed, with RamBox needing a different fit
  • Coil-spring rear means lift kits and air-bag helpers install differently
  • Rebel and TRX are factory-lifted, TRX with a much wider track

What we check before ordering

  • The RamBox option changes tonneau and cap fitment entirely

  • Coil-spring rear suspension means no leaf-spring lift blocks

  • The TRX is much wider — standard bumpers and flares will not fit

RAM 1500 fitment questions

Does the RamBox change what tonneau fits?

Yes. Trucks with the RamBox bed storage need a RamBox-specific tonneau or cap, because the bed rails are wider. We confirm before ordering.

How is lifting a RAM different?

The RAM 1500 has coil springs in the rear, not leaf springs, so there are no leaf-spring lift blocks. It uses coil spacers or replacement coils instead.

Can you fit a lifted RAM TRX?

Yes, but the TRX is much wider than a standard 1500, so bumpers, flares, and clearance parts have to be TRX-specific.

About undercoating & rust protection

Rust is the slow killer of trucks in the Rio Grande Valley, and Brownsville has it worst. Salt air off the Gulf attacks the frame, rocker panels, brake lines, and every exposed fastener long before the body shows it. Undercoating is the cheapest insurance you can buy against it — a few hundred dollars now instead of a frame that is unsafe in ten years.

Full undercoating & rust protection guide

What it costs on a RAM 1500

Entry
$200–$500 (oil or wax coating, single application)
Mid
$500–$1,000 (full undercarriage plus frame rails and seams)
Premium
$1,000–$2,000 (rubberized or epoxy system, wheel wells, rockers, touch-up schedule)

Final price depends on your RAM 1500 year, cab, and bed. We quote up front.

Tell us your RAM 1500 year

Undercoating and rust protection applied in the Rio Grande Valley for 37 years. Built for coastal salt, humidity, and trucks that are kept.

Get a free quote Call (956) 682-1148

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