The Fox Factory Race Series 2.0 ATS (Adjustable Through Shaft) Steering Stabilizer (part number 983-02-148) is a direct bolt-on steering stabilizer engineered specifically for the 2018-and-up Jeep Wrangler JL and 2020-and-up Jeep Gladiator JT.
What Makes ATS Different: Conventional steering stabilizers create a push or pull steering force as the shaft displaces fluid when turning in one direction. The ATS architecture eliminates shaft fluid displacement throughout the stabilizer's entire travel in both directions, delivering neutral and consistent damping in a single bolt-on unit — without requiring dual opposing stabilizers.
Reservoir & Cavitation Elimination: The external piggyback reservoir provides additional fluid capacity and uses an Internal Floating Piston (IFP) to separate the fluid from the nitrogen gas charge, eliminating cavitation that causes fade under hard use.
Adjustability: An external adjuster provides 24 clicks of compression adjustment, allowing the damping to be tailored to any driving style or tire setup.
Full Specs (verified from ridefox.com):
| Spec | Detail |
|---|---|
| Part Number | 983-02-148 |
| Series | Factory Race |
| Travel | 8.12" |
| Extended Length | 23.19" |
| Compressed Length | 15.07" |
| Top Mount | Axle Mount |
| Bottom Mount | Eyelet |
| Body | 2.0" impact extruded, CNC machined, clear-anodized 6061-T6 aluminum |
| Body Plating | Hard-anodized for a durable finish |
| Components | Black-anodized, CNC machined 6061-T6 billet aluminum |
| Shaft | 5/8" hard chrome plated, heat-treated alloy steel |
| Piston | Race-developed high-flow piston design |
| Valving | Application-specific valving |
| Seals | Redundant sealing pack — main seal, wiper seal, scraper seal |
Fitment: 2018+ Jeep Wrangler JL / 2020+ Jeep Gladiator JT — axle mount, direct bolt-on.
Part Number: FOX 983-02-148 Warranty: Fox Limited Lifetime Warranty