Whiteline Positive Shift Kit - Gearbox Mount Bushing Insert

The Whiteline Positive Shift Kit is a precision-engineered gearbox mount bushing insert designed to transform shift feel and response in manual transmission vehicles. By inserting directly into the factory gearbox mount, this upgrade eliminates the excessive compliance caused by heavily voided OEM rubber mounts — delivering a noticeably crisper, more mechanical connection between the shifter and transmission without requiring a full mount replacement.

Each Positive Shift Kit is molded from Whiteline's proprietary synthetic elastomer compound — an advanced material engineered to outperform both standard rubber and traditional polyurethane. This formulation delivers the smooth, compliant ride characteristics of rubber at everyday speeds, while reacting under acceleration, braking, and cornering loads to provide measurably better drivetrain control. The compound also offers excellent resistance to oil, grease, ozone, and environmental weathering for long-term durability.

Key Features & Benefits:

• Inserts into the existing factory gearbox mount — no complete mount replacement required
• Reduces compliance in heavily voided OEM mounts for crisper, more direct shift action
• Proprietary synthetic elastomer compound balances performance with everyday drivability
• Superior elasticity, memory, and durability across all driving conditions
• Resistant to oil, grease, ozone, and environmental weathering
• Supplied with extreme pressure molybdenum disulphide (LM) grease where required for extended service life
• Internal grease reservoirs provide continual self-lubrication for optimum friction management
• Designed for straightforward installation — minimal specialized tools or skills required
• Installation guide included with each kit
• Reversible installation allows return to stock configuration
• Vehicle-specific designs across the product line ensure proper fit and consistent performance

Whiteline's Positive Shift Kit is an outstanding value-driven performance upgrade for manual transmission enthusiasts seeking a more engaging, responsive driving experience. Each variant in this product line is engineered to a specific vehicle application, ensuring a precise fit and meaningful improvement across a wide range of platforms.