General Motors GM-43484 Output Shaft Seal Installer
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General Motors GM‑43484 Output Shaft Seal Installer
The GM‑43484 Output Shaft Seal Installer (Kent‑Moore Tool Number DT‑43484 discontinued) is a genuine OEM specialty tool designed for precise installation of output shaft seals on New Process and Borg‑Warner GM transfer cases from 1999–2013. Engineered for professional technicians, this installer ensures the seal is driven squarely, flush, and fully seated into the transfer case—preventing leaks, misalignment, and premature seal failure.
With redesigned 4WD output shafts on GM automatic transfer cases, proper seal installation is critical. The GM‑43484 tool installs the seal onto the output shaft and into the case simultaneously, bottoming out against the case surface to guarantee correct depth. Multiple contact surfaces on the tool protect the seal from damage and maintain perfect alignment throughout installation. For newer‑style seals, use GM‑50649. This tool is also used in conjunction with GM‑8092.
Key Features
- OEM‑certified seal installer for GM transfer cases (1999–2013)
- Kent‑Moore DT‑43484 — trusted by dealership‑level technicians
- Installs seal onto output shaft and into case at the same time
- Ensures seal is installed flush by bottoming out on the case surface
- Multiple precision contact surfaces prevent seal damage and ensure square installation
- Compatible with New Process & Borg‑Warner GM transfer cases
- Use GM‑50649 for newer‑style seals
- Works with GM‑8092 for complete service procedures
Professional‑Grade Performance
Incorrect seal installation can lead to leaks, driveline vibration, and premature transfer case wear. The GM‑43484 eliminates guesswork by providing a controlled, perfectly aligned installation every time. Its robust construction and precision‑machined surfaces make it ideal for dealership service departments, independent repair shops, and drivetrain specialists.
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