Speedo Trans Housing GM 700R4

The Speedo Trans Housing GM 700R4 is a critical component for automotive enthusiasts and technicians looking to maintain or restore accurate speedometer functionality in classic General Motors vehicles. This housing serves as the secure interface between the transmission tailshaft and the speedometer driven gear, ensuring that mechanical rotations are correctly translated to the dashboard gauge. Without a properly seated and sealed housing, your vehicle may suffer from inaccurate speed readings or fluid leaks at the transmission output.

Engineered for precise fitment, this Speedo Trans Housing GM 700R4 features a standard 2.100-inch diameter designed to accommodate driven gears with a 40 to 45 tooth count. The internal geometry is optimized to hold the gear in perfect alignment with the drive gear on the output shaft, reducing friction and preventing premature component wear. Its robust design ensures a reliable, leak-free seal even under the high-pressure conditions often found in performance-built automatic transmissions.

This housing is highly versatile, offering compatibility with both the GM 700R4 and TH350 transmission platforms, making it a staple for those searching for specifications that meet original equipment standards. Whether you are recalibrating for a new rear-end gear ratio or replacing a worn factory unit, this part provides the reliability needed for consistent speed tracking. It is an essential purchase for anyone looking to buy high-quality transmission service parts for a restoration or custom project. Shop TacticalSurplusUSA.