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SKU: LK4002

4-Link Tube and End Kit

$1,132.99


The 4-Link Tube and End Kit supplies the joint hardware to fabricate a four-link suspension from scratch: rod ends, weld-in threaded tube adapters, jam nuts, and high-misalignment spacers in matched sizes, ready for whatever geometry your solid-axle Jeep, truck, or buggy needs. The rod ends are heat- and cryogenically-treated chromoly, and three configurations let you balance strength, weight, and budget — all 1.25" Pro Krawler Joints, all 1.25" rod ends, or 7/8" uppers over 1.25" lowers.

Features

  • Heat- and cryogenically-treated chromoly rod ends for hard use
  • Lower ends: 2 RH and 2 LH 1.25"-12 tpi rod ends with 1.0" bore
  • Upper ends: 2 RH and 2 LH at 7/8"-14 tpi with 3/4" bore, or 1.25" depending on configuration
  • Weld-in tube adapters with machined wrench flats for easy adjustment
  • Eight stainless 3/4"-to-9/16" wide high-misalignment spacers for maximum articulation
  • Jam nuts included for every rod end
  • Made in the USA

Link tubing is not included: the 1.25" adapters weld into 1.5" ID / 2.0" OD DOM and the 7/8" adapters into 1.0" ID / 1.5" OD DOM, cut to the lengths your geometry calls for, so this is squarely a fabricator's kit. Building a three-link with a panhard instead? See the 3 Link Tube and Rod End Kit or the truss-based Easy 3-Link Kit I, and grab the 4-Link Hardware Assembly for bracket bolts and spacers.

Specifications

  • Rod end material: Heat- and cryogenically-treated chromoly
  • Lower ends: 2 RH + 2 LH, 1.25"-12 tpi x 1.0" bore
  • Upper ends: 2 RH + 2 LH, 7/8"-14 tpi x 3/4" bore (or 1.25" per configuration)
  • Adapters: Weld-in threaded tube adapters with machined wrench flats, plus jam nuts
  • Misalignment spacers: 8 x 3/4" to 9/16" wide, stainless steel
  • Tube requirements: 1.5" ID / 2.0" OD DOM for 1.25" ends; 1.0" ID / 1.5" OD DOM for 7/8" ends (not included)
  • Configurations: All 1.25" Pro Krawler Joints (LK4002), all 1.25" rod ends (LK4001), 7/8" upper + 1.25" lower (LK4000)
  • Origin: Made in USA

4-Link Tube and End Kit FAQs

Is link tubing included in the kit?

No. The kit provides the rod ends, weld-in tube adapters, jam nuts, and spacers — you supply DOM tube cut to your lengths. Use 1.5" ID / 2.0" OD tube for the 1.25" ends and 1.0" ID / 1.5" OD tube for the 7/8" ends.

Which of the three configurations should I choose?

All-1.25" setups give the most strength for heavy or high-horsepower rigs, while 7/8" uppers over 1.25" lowers save weight and cost where the upper links carry less load. The Pro Krawler Joint option upgrades the lowers to rebuildable high-misalignment joints for maximum articulation.

Do I need to weld to build these links?

Yes. The threaded tube adapters weld into your link tubing, so this is a fabricator's kit that assumes cutting, fitting, and quality welding. Once assembled, the threaded ends and jam nuts let you fine-tune link length on the vehicle.

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