OBS Chevy Long-Travel Suspension: What It Really Takes

July 26, 2026

The short answer: long-travel is the hard part of an OBS Chevy prerunner build. The 2WD C1500 uses a coil-spring independent front end (the 4WD K1500 uses torsion bars), and unlike a Tacoma or Ranger, there is no off-the-shelf long-travel desert kit from the major brands for the 1988–1998 GMT400. Real travel means custom fabrication.

The OBS front end: coil (2WD) vs torsion bar (4WD)

Both drivetrains use an independent, unequal-length A-arm (short-long arm) front suspension — the difference is the spring. The 2WD C1500 is sprung by coil springs; the 4WD K1500 is sprung by torsion bars. The 2WD is the usual prerunner starting point: it’s lighter, cheaper, rear-drive, and its independent front is well suited to building travel — not a solid axle you’d have to design around.

Why there’s no bolt-on OBS long-travel kit

The big desert-suspension brands simply skip this platform. Camburg starts its Chevy/GMC 1500 long-travel kits at 1999–2006; Dirt King starts at 2007. That leaves the 88–98 GMT400 as a fabrication platform. There was historically a Fabtech long-travel kit for the 88–98 C1500, but it’s long discontinued. So plan on a custom build rather than a catalog order.

What a custom OBS long-travel setup takes

A serious desert front end on an OBS is built, not bought:

  • Custom tubular upper and lower control arms, usually with 1" uniballs, for the extra width and travel.
  • Custom or modified spindles/knuckles to correct geometry.
  • A coilover conversion with quality shocks — see our King Shocks guide and the bypass vs coilover breakdown.

Street-truck tubular arms and drop/lift spindles exist in abundance for the OBS, but most are lowering- or lift-oriented, not desert long-travel — they’re a starting point, not a finished prerunner front end. Lean on a good fab shop. For the general theory, read long-travel suspension explained.

Rear suspension

The OBS leaves the factory with a leaf-spring live axle. Two paths:

  • Keep the leaves and add travel and control — longer shackles, an add-a-leaf, good bump stops, and quality shocks or bypasses. The simple, budget path.
  • Convert to link + coilover for a real desert rear. Bolt-on OBS coilover/4-link kits exist (Belltech, RideTech), but note those are marketed for street performance and handling, not desert racing — a hard-use desert rear still leans custom.

OBS long-travel FAQ

Does anyone make a bolt-on long-travel kit for an OBS Chevy?

Not from the major desert brands. Camburg and Dirt King start at 1999 and 2007 respectively, so an 88–98 GMT400 long-travel front end is a custom-fabrication job.

Is the OBS front suspension coil or torsion bar?

The 2WD C1500 uses coil springs; the 4WD K1500 uses torsion bars. Both are independent A-arm designs.

Is an OBS harder to build than a Tacoma or Ranger?

For long travel, yes — there’s no off-the-shelf kit, so budget for fab work. That’s the tradeoff for cheap V8 power and the classic OBS look.

More OBS & prerunner guides

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