Synergy Manufacturing

Synergy Jeep JK / JL / JT Rear Bump Stop Spacer Kit

  • VENDOR: Synergy Manufacturing
  • PART#: SYN-8858-20
  • YOUR PRICE: Regular price $125.00


When lifting the Jeep JK, JL or JT, either through tire size or suspension lift, the axle travel needs to be limited to prevent the possibility of tire interference. These Synergy rear bump stop spacers provide a solution to this interference problem by limiting the axle travel toward the frame.


  • Jeep Wrangler JK / JKU
  • Jeep Wrangler JL / JLU
  • Jeep Gladiator JT


Part Number Description
8858-20 2.0" Jeep JK / JL / JT Rear Bump Stop Spacer Kit
8858-30 3.0" Jeep JK / JL / JT Rear Bump Stop Spacer Kit
8858-40 4.0" Jeep JK / JL / JT Rear Bump Stop Spacer Kit


  • Bump stops bolt onto the axle bump pad and provides 2", 3" or 4" of bump stop spacing.
  • Manufactured from CNC laser cut 1/4” high carbon steel for superior durability and strength.
  • Abrasion-resistant powder coat finish for maximum durability and corrosion resistance.
  • 100% bolt on components assure an easy, trouble free installation with the use of basic hand tools for JK and JL models.
  • Designed for perpendicular engagement when the rear axle pinion angle is adjusted for proper drive line angle.


  • (2) Lower Rear Bump Stops
  • (1) Bump Stop Mounting Hardware Kit
  • (1) Drill Template for JT Axle Pads

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