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Performance Rear Drop Link Set, +30% Increased Rubber Hardness. Porsche 911 1978-89 / 930 1978-89 ❭ 93033307X01
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
Upgrade your rear suspension linkage with this performance drop link set specifically designed for the Porsche 911 / 930 (1978-1989). Both left & right links included. Featuring stiffer rubber bushes with a 30 % increase in hardness versus stock, this set provides a stronger, more direct connection between the rear stabiliser bar and suspension arms — delivering sharper handling, reduced body roll, and improved rear-end feel under load. Ideal for spirited road driving, track use or any build where precision handling matters.
Fits:
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
Diagram Ref No 12
What This Product Does:
- The rear drop links connect the rear anti-roll bar (stabiliser bar) to the rear suspension arms/axle. When the car corners, the anti-roll bar helps keep the body flatter by transferring load between wheels; the linkage must be rigid and responsive for full effect.
- By increasing the rubber hardness in the bushes by 30 % over standard, the link is less prone to flex, deformation or movement under load. This means the stabiliser bar engages more effectively, quicker and with less lost motion.
- The upgrade therefore yields sharper rear-end response, less body roll, better handling stability, particularly under spirited driving or track use.
Symptoms & Signs You Might Need It:
- You experience clunking or knocking noises from the rear suspension when going over bumps or during cornering — typical of worn drop link joints or flexible bushes.
- The car displays excess rear body roll, or the rear end feels less controlled in transitions — possibly the stabiliser bar isn’t transmitting force effectively due to soft/link compliance.
- You’ve upgraded other components (e.g., stronger springs, larger tyres, lowered ride height) but the rear still doesn’t feel tight — the stock links may be the weak link.
- The existing links have rubber bushes that are cracked, collapsed, excessively soft or you detect play in the link.
- Visual inspection of the rear links shows degraded bushings, movement under load, or the mounts appear worn.
Why This Upgrade Matters:
- Handling precision: With the stiffer bushes, the drop links provide a firmer connection, meaning the stabiliser bar is engaged earlier and more completely — improving turn-in, chassis balance and cornering feel.
- Complements suspension upgrades: If the rest of the suspension has been improved (e.g., springs, dampers, sway bar) then a stronger link makes sure the stabiliser bar isn’t held back by weak link hardware.
- Longevity and durability: The upgrade is likely to resist wear, deformation and fatigue better than standard softer bushings, thus maintaining performance over time.
- Value and driving enjoyment: For performance-oriented or track-use cars, the handling benefit is real. Even for road use, more solid links reduce movement, improve feedback and instil driver confidence.
- Prevents secondary issues: Poor drop links can lead to uneven tyre wear, shifting geometry or looseness — upgrading helps avoid these costly or dangerous side-effects.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93033307X01
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Boxster 718 2.0L Manual (300 Bhp)
- Porsche Boxster 718 2.0L PDK (300 Bhp)
- Porsche Boxster S 718 2.5L Manual (350 Bhp)
- Porsche Boxster S 718 2.5L PDK (350 Bhp)
- Porsche Boxster T 718 2.0L Manual (300 Bhp)
- Porsche Boxster T 718 2.0L PDK (300 Bhp)
- Porsche Boxster GTS 718 2.5L Manual (365 Bhp)
- Porsche Boxster GTS 718 2.5L PDK (365 Bhp)
- Porsche Boxster GTS 718 4.0L Manual (400 Bhp)
- Porsche Boxster GTS 718 4.0L PDK (400 Bhp)
- Porsche Boxster Spyder 718 4.0L (420 Bhp)
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 GT3 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII GT3 2010-11
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GT4 3.8L 2015-16
- Porsche Cayman 718 2.0L Manual (300Bhp)
- Porsche Cayman 718 2.0L PDK (300Bhp)
- Porsche Cayman S 718 2.5L Manual (350Bhp)
- Porsche Cayman S 718 2.5L PDK (350Bhp)
- Porsche Cayman T 718 2.0L Manual (300Bhp)
- Porsche Cayman T 718 2.0L PDK (300 Bhp)
- Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
- Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
- Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
- Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L


Porsche 987 Boxster MKI 2005-08 Front or Rear
Porsche 987 Boxster MKII 2009>> Front or Rear
Porsche 987C Cayman MKI 2005 Front or Rear
Porsche 987C Cayman MKII 2009>> Front or Rear

Porsche 997 MKI C2 / C2S 2005-08 Front
Porsche 997 MKII C2 / C2S 2009>> Front
Porsche 997 GT2 2007>> Front
Porsche 997 GT2-RS 2010>> Front
Porsche 997 GT3 2007>> Front
Porsche 997 Special model "911 Sport Classic" 2009>> Front
Porsche 997 Speedster 2009>> Front

Porsche Cayman 2.7L 981 2013-16
Porsche Cayman S 3.4L 981 2013-16
Porsche Cayman GT4 3.8L 2015-16
Porsche Cayman 718 2.0L Manual (300Bhp)
Porsche Cayman 718 2.0L PDK (300Bhp)
Porsche Cayman S 718 2.5L Manual (350Bhp)
Porsche Cayman S 718 2.5L PDK (350Bhp)
Porsche Cayman T 718 2.0L Manual (300Bhp)
Porsche Cayman T 718 2.0L PDK (300 Bhp)
Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
Porsche Boxster 981 2.7L 2012-16
Porsche Boxster S 981 3.4L 2012-16
Porsche Boxster Spyder 3.8L 2016
Porsche Boxster 718 2.0L Manual (300 Bhp)
Porsche Boxster 718 2.0L PDK (300 Bhp)
Porsche Boxster S 718 2.5L Manual (350 Bhp)
Porsche Boxster S 718 2.5L PDK (350 Bhp)
Porsche Boxster T 718 2.0L Manual (300 Bhp)
Porsche Boxster T 718 2.0L PDK (300 Bhp)
Porsche Boxster GTS 718 2.5L Manual (365 Bhp)
Porsche Boxster GTS 718 2.5L PDK (365 Bhp)
Porsche Boxster GTS 718 4.0L Manual (400 Bhp)
Porsche Boxster GTS 718 4.0L PDK (400 Bhp)
Porsche Boxster Spyder 718 4.0L (420 Bhp)
This product supersedes Porsche's old part numbers:
- 99734306900 (LEFT) / 99734307000 (RIGHT)
- 99734306901 (LEFT) / 99734307001 (RIGHT)
- 99734306902 (LEFT) / 99734307002 (RIGHT)
- 99734306903 (LEFT) / 99734307003 (RIGHT)
- 99734306904 (LEFT) / 99734307004 (RIGHT)
Click 'zoom in' for large parts diagram.
Diagram ref no 5.
Left or Right drop link.
Please Select below.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9973430
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12

Fits:
Porsche 987 Boxster - 2005 to 2012
Porsche 987 Boxster S - 2005 to 2012
Porsche 987 Cayman - 2006 to 2012
Porsche Cayman S - 2006 to 2012
Rear adjustable drop links for Porsche Boxster / Cayman Models, Made in USA High Grade Aerospace Materials
Type: Adjustable Rear Drop links
replacement for 99634306904, 99634307004,
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
326
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 718 2.0L Manual (300 Bhp)
- Porsche Boxster 718 2.0L PDK (300 Bhp)
- Porsche Boxster S 718 2.5L Manual (350 Bhp)
- Porsche Boxster S 718 2.5L PDK (350 Bhp)
- Porsche Boxster T 718 2.0L Manual (300 Bhp)
- Porsche Boxster T 718 2.0L PDK (300 Bhp)
- Porsche Boxster GTS 718 2.5L Manual (365 Bhp)
- Porsche Boxster GTS 718 2.5L PDK (365 Bhp)
- Porsche Boxster GTS 718 4.0L Manual (400 Bhp)
- Porsche Boxster GTS 718 4.0L PDK (400 Bhp)
- Porsche Boxster Spyder 718 4.0L (420 Bhp)
- Porsche Boxster 25 Years 718 4.0L Manual (400 Bhp)
- Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp)
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman 718 2.0L Manual (300Bhp)
- Porsche Cayman 718 2.0L PDK (300Bhp)
- Porsche Cayman S 718 2.5L Manual (350Bhp)
- Porsche Cayman S 718 2.5L PDK (350Bhp)
- Porsche Cayman T 718 2.0L Manual (300Bhp)
- Porsche Cayman T 718 2.0L PDK (300 Bhp)
- Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
- Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
- Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
- Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
Fits:
Porsche 987 Boxster
Porsche 987C Cayman
Porsche 981 Boxster
Porsche 981C Cayman
Porsche 718 Boxster
Porsche 718 Cayman
Upgrade your stock or adjustable rear swaybar with this simple bolt in replacement for the factory drop links.
Left & right-hand threaded rod ends allow for simple length adjustment to eliminate swaybar pre-load.
Correctly sized, precision, Teflon-lined rod-ends for smooth and quiet operation, long life, and high reliability. No wear and rattling problems, like those seen with other designs, due to undersized or low quality rod ends.
Eliminates the factory compliant plastic drop link bushings that deflect under loading and quickly wear out.
High misalignment, stainless steel spacers allow for superior bind free operation and corrosion resistance.
Precisely connects the stock or adjustable swaybar to the rear strut assembly for improved feedback and swaybar response.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
360230986R
The product you are viewing cross references to these numbers
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