Installation kit Genuine Porsche part 91142493100

Short Shift Kit. Porsche 911 1974-86



Factory style short shift kit for 911 2.7 / SC / 3.2
915 GEARBOX from 1974- 86. REDUCED SHIFT BY 20%, complete with gearshift lever.

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91142493100

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Short shift kit - track.



Track car short shift kit for 911 2.7/SC/3.2
915 GEARBOX from 1974- 86. REDUCED SHIFT BY 20%, complete with gearshift lever.

Please CLICK HERE for installation instructions

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91142493100W

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Short shifter kit. Reduces the shift by around 30%

Fits:
Porsche 911 / 912 / 1965-74

Reduce the length of throws and give the shifter in your 911, 912 or 914 a more solid feel with short throw shift kit. Machined from billet stock, this kit will reduce the throw of your shifts by approximately 30% and provide more precise engagement. Weighted to improve the speed and accuracy of your shifts with a minimal increase in effort, this shift kit provides benefits any driver will appreciate.

Download the detailed  installation instructions

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S98024P196574

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Short shift kit.



Factory style short shift kit for 911 2.7 / SC / 3.2
915 GEARBOX from 1974- 86. REDUCED SHIFT BY 20%, complete with gearshift lever.

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91142493100

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Short shift kit. Porsche 911 with 915 gearbox 1974-86
REDUCED SHIFT BY 30%

Short shift kit for the 915 gearbox
Porsche 911 2.7 / SC / 3.2 Carrera from 1974 - 1986.

Please view PDF for fitting instructions

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91142493100

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Short shift kit. Porsche 911 / 914 with 901 or 911 gearbox 1965-72
REDUCED SHIFT BY 30%

Short shift kit for the 901 and 911 gearbox 1965-72
Porsche 911 2.0ltr / 2.2ltr
Porsche 914

Please view PDF for fitting instructions

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91142493100

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Gearshift improver helper spring - for 915 Gearbox

Fits:
Porsche 911 - 1972 to 1986



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915SPRING

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Short (30%) Shift Distance Kit.

Upgrade your Porsche’s gearshift precision with this Short Shift Kit. Designed to reduce shift lever throw by a significant margin, it delivers quicker, more direct gear changes while preserving smoothness and reliability.

Fits:

• Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
• Porsche 911 1978-1983 3.0L / SC
• Porsche 911 1984-1986 3.2L

What This Product Does:

• This is a short-shift kit / short shifter insert for manual gearboxes used in older Porsche 911 models (and compatible transmissions).
  
• Its main function is to reduce the throw / distance the gear lever must travel between gears.
  
• By shortening the shift distance, it allows quicker shifts, giving a more “direct” and sporty feel to the gearbox.
  
• Because the lever movement is reduced, it typically changes the mechanical leverage slightly, which can make shifts feel firmer and more precise (less slack).
  
  

Symptoms Or Signs Of A Worn / Faulty Short-Shift Kit:

• Inconsistent or sloppy shifts - If the mechanism is worn, not properly fitted, or the insert is loose, you may feel slack, missed shifts, or extra play.
  
• Dragging or binding gear lever - If tolerances are tight or misaligned, the lever might bind slightly during movement, especially when shifting quickly.
  
• Noise or rattle in shifter area - A loose insert might cause clicking, rattling, or vibration felt through the shift lever.
  
• Reduced effectiveness / drift - Over time, the kit components (bushings, linkages) can wear, reducing the short-shift benefit or making it feel “softened.”
  
• Gear change errors under high stress / racing - In a performance setting, when you expect crisp shifts, a degraded kit might lead to missed or slow shifts.
  
  

Why Replacement / Upgrade Matters:

• Faster shifts: Less lever travel means quicker transitions between gears, especially useful for spirited driving or track use.
  
• Better shift feel: Reduced slack or play gives a more direct, mechanical, connected feel to the gearbox.
  
• Enhanced driver engagement: More responsive shifting helps the car feel more “driver-oriented” and sporty.
  
• Minimal downsides: A good kit does this without dramatically increasing wear or negatively affecting everyday comfort.
  
• Value in restoration / upgrades: For classic Porsche owners restoring or upgrading, applying a short-shift kit helps modernize the driving experience while retaining originality.

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91142493100

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Short (30%) Shift Distance Kit.

Enhance your Porsche’s driving experience with this Short Shift Kit, designed to reduce gear lever travel by up to 30% for quicker, more precise shifting.
Manufactured to OEM standards, this kit delivers sharper engagement and a sportier, more mechanical shift feel without sacrificing reliability or smoothness.
Perfect for classic Porsche 911 and 912 models equipped with early 901 or 915 transmissions, this kit is one of the most effective performance upgrades for enthusiasts who value control and response behind the wheel.

Fits:

• Porsche 911 1965-1968 2.0L / 912 SWB (F)
  
• Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
  
• Porsche 914 (1970-1976)
  
  

What This Product Does:

• The Short (30%) Shift Distance Kit is designed to reduce the distance your gear lever travels between shifts — giving a sportier, more precise, and faster gear change.
• By altering the shifter mechanism’s leverage ratio, this kit shortens the throw by roughly 20–30%, resulting in a more direct, mechanical feel.

Symptoms Of Worn Or Standard Shift Mechanism:

• Long, vague gear throws – excessive lever movement between gears.
  
• Loose or sloppy feel – due to worn linkage bushings or an outdated geometry.
  
• Missed shifts under load – from excessive travel or worn alignment.
  
• Reduced driver confidence – especially in performance or spirited driving.
  
  

Why Replacement / Upgrade Matters:

• Sharper shifting response: Reduces gear lever travel for faster, crisper engagement.
  
• Improved driver control: Makes each shift more precise and confidence-inspiring.
• Enhanced performance feel: Brings modern shift precision to classic Porsche models.
  
• Ideal for restorations or upgrades: Adds value and driving engagement without compromising originality.

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91142493100

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