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- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Upgrade your classic Porsche 911’s front suspension with this premium 24 mm adjustable front anti-roll bar kit, designed for 1965-1973 911 models. Replacing the original ~15 mm bar, this kit includes the thicker torsion bar, adjustable levers/drop-links and full mounting hardware, offering significant improvement in chassis control and tuning flexibility. Ideal for restoration, spirited road use or track preparation—this kit gives sharper turn-in, less body lean and the ability to fine-tune roll stiffness to match your tyres and springs.
Fits:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
What This Product Does:
- The front anti-roll bar (sway bar) connects the left and right front suspension arms, limiting body roll by providing a torsional link between the two sides when cornering.
- By upgrading from the stock ~15 mm diameter bar to 24 mm, you significantly increase torsional stiffness of the bar—thus reducing body lean, improving turn-in and helping the chassis resist roll under load.
- The adjustable feature means you can change the effective leverage or drop-link mounting position (shorter vs longer arm), thereby tuning the roll stiffness to match springs, tyres, driving style or track vs road use.
- For a classic 911 with upgraded suspension, wider tyres or lowered ride height, this kit helps ensure the anti-roll bar isn’t the weak link and supports sharper front-end handling.
Symptoms & Signs You Might Need It:
- The front end of your 911 feels soft or “floaty” in corners, or there’s noticeable body roll—especially compared to performance cars of similar vintage.
- You’ve upgraded the suspension (lowered springs, stiffer dampers, wider tyres) and the original anti-roll bar seems to “give” too much or let the car lean more than you’d expect.
- The drop-links or bar mountings show excessive wear, movement or noise (clunks) when turning or going over undulations.
- You want tuning capability for ride/handling balance—stock fixed bars don’t allow easy adjustment of roll stiffness or corner-balance differences.
- Visual inspection reveals the stock bar is thin, corroded, the mount bushes collapsed, or the drop-link geometry is showing signs of age.
Why This Upgrade Matters:
- Improves chassis precision: With a thicker bar and adjustable feature you gain better front-end response, sharper turn-in, and less understeer due to roll-control improvement.
- Works with the rest of your suspension: If you have upgraded springs/tyres/dampers, this bar ensures those upgrades aren’t compromised by a weak sway bar.
- Tuning advantage: Because the kit is adjustable, you can dial in the front roll stiffness to match your use (road vs track) or alter the handling balance (understeer/oversteer) more easily.
- Classic 911 value: For older cars, having performance-capable and maintenance-fresh suspension components adds to usability and resale value.
- Longevity: Stock bars and mountings from the 1960s/70s may be corroded or tired—replacing with a modern, thicker and adjustable kit improves durability and driving confidence.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
901343703PR
The product you are viewing cross references to these numbers
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
Fits:
Porsche 996 C4 / C4S 1999>>
Porsche 996 TURBO / S / GT2 2005>> For cars with differential lock (exclusive) ( IX75)
Click 'Zoom in' for large parts diagram.
Diagram ref no 1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99634370303
The product you are viewing cross references to these numbers
Anti-Roll Bars (ARB’s) play an important role in a vehicle’s suspension system, helping to reduce body roll by transferring cornering load from one side of a vehicle to the other.
Often mounted to the vehicle’s chassis with rubber bushes, these bushes ensure the bar works as intended. To prevent the anti-roll bar from moving laterally within its mounts when turning, OE manufacturers will either bond the bushes to the bar, add dead-stops to the bar itself, or rely solely on the clamping pressure of the rubber.
But what happens when those bushes wear and need to be replaced? Often anti-roll bars with bonded bushes come as a costly complete assembly, so the alternative is to fit a more cost-effective unbonded polyurethane replacement, like the many we offer.
In most cases, friction from the bush will prevent any side-to-side bar movement. Still, when turning aggressively or cornering at higher speeds, a laterally shifting anti-roll bar decreases the efficiency and effectiveness of the bar, changing the dynamics of your suspension system in unpredictable ways. It also poses the risk of the bar fouling on other areas of the vehicle or suspension system.