Shifting gear. Porsche 911 72-86 915 Gearbox

The Porsche replacement product code 91530222709 is a precision-engineered component integral to the 915 manual transmission system found in Porsche 911 models from 1972 to 1986

This part is a shift sleeve, also known as a synchromesh sleeve or slider, specifically designed for the 5th gear and reverse gear operations in the 915 gearboxes. The shift sleeve facilitates the engagement and disengagement of gears by sliding along the main shaft to align with the corresponding gear teeth. It plays a crucial role in ensuring smooth and precise gear shifts, particularly when selecting 5th gear or reversing.

Typically crafted from high-strength steel alloys, the shift sleeve is designed to withstand the stresses and forces encountered during gear changes.

Fits:
Porsche 911 72-86 915 Gearbox
Manual transmission

Over time and with extensive use, the shift sleeve can experience wear and degradation, leading to various transmission-related issues:

• Difficulty Engaging 5th Gear or Reverse: Excessive wear on the shift sleeve's teeth or detents can result in challenges when attempting to engage 5th gear or reverse, often requiring additional effort or multiple attempts.
• Grinding Noises: Worn or damaged shift sleeves may fail to fully engage the gear, causing grinding noises during gear selection.
• Slipping Gears: Improper engagement due to a faulty shift sleeve can lead to gears slipping out of engagement, posing safety risks and potential damage to the transmission.
• Inconsistent Shifting Feel: A degraded shift sleeve can result in an inconsistent or "notchy" shifting experience, detracting from the smooth operation expected in Porsche vehicles.

OE Match produces products to the Original Equipment Manufacturer (OEM) standard parts, ensures the replacement component meets a stringent quality standard and guarantees proper fitment.

Professional Installation: Given the complexity of transmission systems, it's advisable to have the shift sleeve replaced by a qualified technician to ensure correct installation and to avoid potential damage to the transmission.

Inspection of Related Components: During replacement, it's prudent to inspect related components, such as the synchro rings and gear teeth, for wear or damage to prevent recurring issues.

Diagram ref no 57

Related reference numbers
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91530222709

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