Drag Bar Holden HQ HJ HX HZ- Rear
Griptech Industries Race-It Series Rear ARB / Sway Bar for Holden Kingswood HQ, HJ, HX, HZ – Fixed 30mm of 33mm for Drag Racing
Leave straight and stay straight with the Griptech Race-It Series Rear Sway Bars, engineered for high-horsepower Holden Kingswood builds running down the strip. Available in 30mm or 33mm sizes, these bars are purpose-built to lock down the rear end, improve launch control, and help you maintain straight-line stability under hard acceleration.
Crafted from 5160 spring steel and finished with a multi-stage powder coat, these bars are all about delivering performance when it counts. Supplied as a complete kit, which has been designed a bolt on kit. The Supplied Heavy Duty Axle Brackets are profiled and work with the supplied U-Bolt hardware, or can be welded to the axle based on your own preference.
Fitment and Compatibility
Direct bolt-on upgrade for:
Holden Kingswood HQ: 1971 – 1974
Holden Kingswood HJ: 1974 – 1976
Holden Kingswood HX: 1976 – 1977
Holden Kingswood HZ: 1977 – 1980
Available Sizes
30mm Fixed Bar – Ideal for moderate drag setups
33mm Fixed Bar – For high-power street/strip builds
Features & Benefits
Race-It Series Stability: Engineered for maximum launch control and rear-end stability
Fixed Diameter Choices: Choose 30mm, 33mm, or 35mm based on power level and use
Drag Ready: Locks in the chassis and keeps launches straight
High-Strength Steel: Forged from 5160 Chrome Moly, hot-bent and shot-peened
Powder Coated Finish: Multi-stage process for corrosion protection
Easy Fit: Bolt-on / (Optional Weld-on) design with all required hardware included
Griptech Lifetime Warranty
Bar Type: Fixed |
Fitting Kit: Included |
FREQUENTLY ASKED QUESTIONS
A caravan sway bar reduces trailer sway and body roll while towing. It works by resisting the weight shift from one side of your van to the other, making your setup more stable and predictable on the road — especially against cross winds, head winds and lane changes at highway speeds. Griptech’s Tow-It Series Sway Bars are precision-engineered for serious towing safety.
Griptech Industries design, engineer and manufacture application specific kits so you can be sure this is a caravan specific kit to suit the van listed and is specified based on our experience and our customers feedback. This is not one size fits all. If you caravan, camper or trailer is not listed, feel free to contact us, we may still be able to help or even better, already working on a solution.
Yes, but not significantly and not by as much as you might be thinking, and we believe the compromise is worth the added safety while on the road. Tow-It Series Sway Bars are tuned for Sway resistance, not stiffness. Independant suspension is without doubt the best way to ensure stability on rough terrain, however if you spend allot of time on highways before arriving at the dirt road, a sway bar kit will get you there with more comfort, safety and confidence. If you are researching how to stop trailer sway, caravan wobble or lean you will know what we mean.
Yes, if you like — a sway bar and a weight distribution hitch serve different roles. Use both together for the most stable towing setup if your tow vehicle and caravan or trailer allow and require it.
- Sway bar = reduces sway and roll
- Weight Distribution Hitch = distributes weight more evenly across axles
We supply everything you will need - But it is important to note this is a retro-fit kit, so some drilling may be required. We have made these kits as easy as we can, however we've designed them to handle the required loads and forces first and foremost and this means bolt into and sometime through major braces and cross-beams.
Your sway bar is covered by a lifetime warranty against manufacturing or material defects and we back this with our Fair Go Policy, meaning we’ll always try to help even outside warranty conditions. There is a little fine print such related to commercial use and incorrect fitment, but no surprises. We are and always will be here to help so get in touch if you ever have any concerns.
We try to have as many popular kits on the shelf as we can, however ultimately if it is not we will manufacturer your kit to order. Because we make these in house we can produce most kits and ship them within 3 weeks. If you are on a tight schedule, don't be afraid to reach out ans ask!
Yes, we ship globally however not into the USA. If you are US based, get in touch as we may be able to point you toward another suitable solution. All taxes and import duties are the buyers responsibility.