Auto Transmiss Parts SO38 Automatic Transmission Speedometer Pinion Seal

The Auto Transmiss Parts SO38 is a precision-engineered automatic transmission speedometer pinion seal designed to prevent transmission fluid leaks at the speedometer cable connection point. This seal provides a reliable replacement for worn-out speedometer pinion seals that can cause fluid loss and driveway staining.

Key Features:

• Exact-fit replacement seal engineered for optimum form, fit, and function
• Meets or exceeds original equipment specifications
• Outside diameter: 2.125 inches
• Inside diameter: 1.875 inches
• Designed specifically for GM automatic transmissions
• Prevents transmission fluid leaks at speedometer cable attachment point
• Precision-manufactured for reliable, long-lasting performance

This speedometer pinion seal installs where the speedometer cable attaches to the transmission housing, creating a secure barrier against fluid leakage. Compatible with a wide range of GM vehicles and transmissions, the SO38 seal ensures proper sealing to maintain transmission fluid levels and protect your transmission system.