Designed for Lamborghini transmissions, the 4th-gear-shim-ring is a precision spacer that helps define the exact spacing between gears in the 4th gear position. This small component plays a key role in gear alignment, engagement feel, and long-term durability of the transmission. What is the 4th-gear-shim-ring? A shim ring is a thin, durable spacer that sits within the gear train to set the correct axial distance between 4th gear components. In high-performance transmissions, including those used by Lamborghini vehicles, this spacing helps ensure smooth gear engagement and consistent mesh of gears during shifts. By maintaining precise distance, the shim ring reduces gear clash, minimizes noise, and supports long-term reliability of the transmission under normal driving and performance conditions. It works with the surrounding gears and bearings to preserve alignment. Why is the 4th-gear-shim-ring Important? Over time, wear, deformation, or improper service can alter the gear spacing that the shim ring supports. A worn or damaged 4th-gear-shim-ring can contribute to stiff or inconsistent shifts, gear noise, or uneven wear on adjacent components. Replacing it with a fresh shim helps restore the intended spacing, supports even load distribution, and reduces the risk of misalignment during heavy throttle, high RPM, or sporty driving. Keeping the shim ring in good condition supports reliable operation and preserves transmission integrity. Installation Guide & Support Follow these general guidelines with the vehicle safely parked on level ground and the battery disconnected. Use the proper tools, support the transmission as needed, and work with clean, dry components. Remove related gears or retainers only as required by the service manual, inspect the mating faces for wear, and install the new 4th-gear-shim-ring so it sits flush against its seating surface. Ensure correct orientation, gentle seating, and smooth operation of neighboring parts before reassembling. If you are not confident in performing transmission work, seek trained support to confirm fitment and alignment. At SparesUSA.net, we specialize in providing high-quality automotive spare parts for some of the world’s most iconic luxury and performance brands, Ferrari, Maserati, Lamborghini, and Bentley. With years of expertise and a passion for precision, we offer a wide range of OEM parts, ensuring your prized vehicle runs at its best. We understand that maintaining these prestigious cars requires the right parts, and our inventory is carefully curated to meet the highest standards of quality and performance. From hard-to-find engine components to essential body parts, suspension parts, or electrical systems, SparesUSA.net is your trusted source for all your automotive needs. Our commitment to customer satisfaction extends beyond just supplying parts — we offer fast, reliable shipping worldwide to ensure that no matter where you are, you have access to the best in automotive parts. With a focus on excellence, authenticity, and exceptional customer service, SparesUSA.net is proud to serve car enthusiasts, collectors, and professionals around the globe. Let us help you keep your luxury vehicle performing at the highest level. Register your account on the site and let's find the right setup for your company. You may be interested in: Genuine parts for Ferrari Genuine parts for Bentley Genuine parts for Maserati Genuine parts for Lamborghini Contact Make sure that you buy the right part for your vehicle. If you have any questions about the 4th-gear-shim-ring, then you can always send an e-mail or call us.