RockJock AntiRock 45 inch torsion bar with splined ends on a white background
.800 diameter AntiRock sway bar with text indicating compatibility on a white background
TJ rear AntiRock sway bar torsion bar with specifications on a white background
RockJock AntiRock 45 inch torsion bar with splined ends on a white background
.800 diameter AntiRock sway bar with text indicating compatibility on a white background
TJ rear AntiRock sway bar torsion bar with specifications on a white background

RockJock AntiRock Sway Bar Only – 45" (25-Spline)

ROKCE-9902J

$266.00
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Shipping calculated at checkout.

The 45-inch AntiRock sway bar torsion bar from RockJock Off Road is designed for rear sway bar applications and universal builds that demand increased roll control without sacrificing articulation.

AntiRock torsion bars are available in multiple lengths and center diameters to allow builders to tune sway bar rate as vehicle weight, suspension geometry, and use evolve. With all other factors equal, a larger center diameter results in a stiffer effective bar rate, making diameter changes the most efficient way to fine tune handling.

This bar measures 45 inches tip to tip and features a .800-inch center diameter, paired with standard 1-inch OD ends and 25 splines. For maximum strength and fatigue resistance, each bar is forged and heat treated from 4340 chromoly, the same material used in professional off-road racing sway bars.

Includes:

  • (1) AntiRock sway bar torsion bar
  • 45 in. long × .800 in. center diameter × 25 spline
Specifications
  • Length: 45 in. (tip to tip)
  • Spline Count: 25 spline
  • OD (Splines & Bushing Surface): 1.000 in.
  • OD (Center of Bar): .800 in.
  • Material: Forged & heat-treated 4340 chromoly
  • Threads (Bar Ends): 5/16 in.-24 × 1-1/8 in. deep
  • Finish: Semi-gloss black powder coat
  • Splines and bushing surfaces masked
Fitment
  • Universal application with 25-spline AntiRock arms
  • Commonly included in:
  • TJ Wrangler – Rear AntiRock Sway Bar Kits
  • TJ Wrangler Unlimited (LJ) – Rear AntiRock Sway Bar Kits
  • CE-9902 Series Universal AntiRock Sway Bar Kits
Tech Insight

A .800-inch center diameter provides a noticeably stiffer rate than smaller AntiRock bars, making it ideal for rear applications where additional roll resistance improves stability at speed while maintaining off-road articulation. This bar is commonly used in TJ and LJ rear AntiRock setups and is a solid choice for heavier rigs or builds carrying rear-mounted gear.

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