DODGE A500/A518/A618
The 4WD extension housing (often referred to as the overdrive housing or adapter) for Dodge A500, A518, A618, 47RE, and 48RE transmissions generally fits 1990–2008 Dodge/Jeep 4×4 vehicles, specifically covering 1500, 2500, and 3500 trucks, Ram Vans, and select SUVs.
Transmission & Year Compatibility
- 48RE (4×4): 2003–2008 (fits 5.9L/6.7L Diesel & 8.0L V10)
- A618 / 47RE / 47RH (4×4): 1994–2002
- A518 / 46RE / 46RH (4×4): 1990–2003
- A500 / 42RE / 44RE (4×4): 1988–2004
Make & Model Fitment
- Dodge Ram 1500/2500/3500: 1994–2008
- Dodge Ramcharger: 1984–1993
- Dodge Dakota: 1995–2003 (V6/V8 models)
- Dodge Durango: 1998–2003
- Dodge Ram Van (Full Size): 1995–2003
- Jeep Grand Cherokee: 1994–2004 (V8 5.2L/5.9L or I6 4.0L)
- Jeep Cherokee: 1987–2011
Key Technical Features
- Transfer Case: Designed for 4WD applications, typically with NP271 or NP273 transfer cases for newer models.
- Key Part Numbers: 5093166AA, 5093166AB, D22770GA.
- Specifics: Often used for 10 7/8″ overall length (OAL) setups, 5-bolt mount to the case.
- Common Failure: The 48RE housing is known for cracking due to the weight of the transfer case.
Note: The 48RE 2003–2008 housing is frequently sold as a specific, stronger upgrade for Dodge Ram 2500/3500 Diesel 4×4 trucks.
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