PIONEER 622378 Pioneer 622378 Transmission Mount for GM Vehicles, 1957-1984

Restore reliable drivetrain support with the Pioneer 622378 Transmission Mount, designed for various General Motors applications from 1957 through 1984. This replacement mount helps secure the transmission to the vehicle chassis while reducing vibration and absorbing normal drivetrain movement. It is suited for restoration projects, maintenance repairs, and replacement of worn or damaged original equipment mounts.
Constructed from durable rubber and steel, the Pioneer 622378 features a black-painted finish for added surface protection and a clean, factory-style appearance. The rubber insulator helps isolate transmission vibration and noise, while the steel structure provides dependable support under normal driving conditions. Proper transmission mounting is essential for maintaining drivetrain alignment and helping protect related components from excessive movement.
Designed for select GM cars and trucks, this mount should be matched to the vehicle’s year, make, model, engine, transmission, and original mount configuration before installation. The Pioneer 622378 is supplied as an individual replacement mount and is intended to support a direct, service-focused repair when the application is confirmed. Its broad GM fitment range makes it a practical option for maintaining classic and older vehicles.
Professional installation is recommended, and all mounting surfaces and related hardware should be inspected before installation. Replace damaged or excessively worn hardware as needed, then verify that the transmission is properly aligned and securely fastened. With its rubber-and-steel construction and application-specific design, the Pioneer 622378 provides dependable replacement support for compatible GM vehicles.

Features:

• Brand: Pioneer

• Part Number: 622378

• Application: Various General Motors vehicles from 1957 through 1984

• Construction: Durable rubber and steel

• Finish: Black-painted steel

• Function: Supports the transmission and helps reduce drivetrain vibration

• Quantity: Sold individually