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

Custom Fabrication for GMC Sierra in the Rio Grande Valley

Silverado's upscale twin, with the MultiPro tailgate.

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

Fitting your GMC Sierra

The Sierra shares its bed and cab dimensions with the Silverado, so most accessories interchange. The MultiPro tailgate is the main difference and it changes how some tonneau covers and caps seal at the rear. Denali and AT4 trims add trim-specific bumpers and lighting.

What fits your GMC Sierra

  • Same bed dimensions as the Silverado, so caps, tonneaus, and liners interchange
  • MultiPro tailgate needs a compatible rear seal on covers and caps
  • Leveling kits and lifts shared with the Silverado platform
  • Denali and AT4 trims take trim-specific bumpers and lighting

What we check before ordering

  • The MultiPro tailgate changes rear sealing on some tonneaus and caps

  • AT4 is factory-lifted, so standard clearance parts may not fit

  • Denali trim lighting and grille parts are trim-specific

GMC Sierra fitment questions

Does the MultiPro tailgate change what tonneau fits?

Yes. Some tonneau covers and caps need a MultiPro-compatible rear seal. We confirm your tailgate before ordering.

Do Silverado accessories fit a Sierra?

Mostly yes — the beds and cabs share dimensions. The MultiPro tailgate and trim-specific bumpers are the exceptions.

Can you fit a lifted Sierra AT4?

Yes, but the AT4 is factory-lifted, so we confirm ride height and clearance before ordering bumpers, racks, or bigger tires.

About custom fabrication

Custom fabrication is for the jobs a catalog part cannot solve. A lift kit, an oversize tire or an older truck moves the frame, the mounts and the clearances in ways a mass-produced bumper or step was never measured for. When a bolt-on part will not sit right, we build the part that does. Bumpers, rock sliders, bed racks, cages, fender work and one-off brackets are designed around your truck's actual measurements, then welded, fitted and finished in our shop in the Rio Grande Valley.

Full custom fabrication guide

What it costs on a GMC Sierra

Entry
$300–$800 (brackets, mounts, simple step or trim work)
Mid
$800–$2,500 (custom bumper, slider set or bed rack)
Premium
$2,500+ (full bumper with winch and lights, cage or multi-part build)

Final price depends on your GMC Sierra year, cab, and bed. We quote up front.

Tell us your GMC Sierra year

37 years building and bolting on parts for trucks and 4x4s in the Valley, with locations in McAllen, La Feria and Brownsville. We measure your truck, quote the build up front, and will tell you honestly when a good off-the-shelf part is the smarter buy.

Get a free quote Call (956) 682-1148

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