GKN Motorsport Lightweight 100mm Plunging CV Joint

Engineered by GKN Motorsport, the global benchmark for competition driveline systems, this lightweight 100mm outer diameter (OD) plunging constant velocity joint is developed to survive the brutal shock loads of short-circuit and dirt oval racing. Backed by over 30 years of continuous product evolution, this lightweight variant utilizes an optimized profile to offer a significant 20% weight reduction over standard 100mm alternatives. This drop in rotational mass delivers faster throttle response, crisp power delivery, and cooler operational running temperatures under extreme load.

This plunging CV joint permits up to +/-8mm of smooth linear plunge, making it the industry-standard choice for the inboard position (transmission side) on front-wheel-drive (FWD) vehicles, as well as both the inboard and outboard positions on rear-wheel-drive (RWD) and all-wheel-drive (AWD) independent suspension setups.

Key Technical Features:

• 20% Rotational Weight Saved: Highly lightened outer geometry sheds crucial unsprung rotational weight without structural compromise, keeping hub assemblies nimble over rough terrain.
• Optimal Plunging Design: Features +/-8mm of linear axial plunge travel to effortlessly accommodate dynamic track wheel travel and suspension geometry changes without binding.
• Cooler Operating Temperatures: Precision-machined internal race profiles reduce friction, mitigating extreme heat buildup under heavy load to prevent premature grease breakdown.
• Unsurpassed Reliability: Manufactured by GKN, the world's leading driveline specialist, ensuring exceptional structural integrity on high-impact dirt tracks.

Frequently Asked Questions (FAQs)

Q: Where is a plunging CV joint typically installed on a race car?

A: Plunging joints are primarily used where the driveshaft must change length as the suspension moves. This makes them standard for the inboard (gearbox) side on FWD cars, and both inboard and outboard locations on RWD or AWD cars featuring independent rear suspension setups.

Q: Does this CV joint include the boot, grease, and mounting hardware?

A: This part number is for the standalone CV joint unit. To ensure complete sealing and performance, it must be paired with the matching GKN Motorsport fast or slow boot kits along with specialized high-temperature CV grease and high-tensile mounting hardware.

Q: Can this joint handle the severe suspension angles found in Autograss racing?

A: Yes. GKN Motorsport components are specifically developed to operate at higher continuous angles and handle the abrupt shock loads caused by wheels spinning and gripping on rough dirt track surfaces.

Technical Specifications

Part Number & Boot Kit Cross-Reference Guide