GM 4L60E 2 PIECE CASE 1998-2003 (GOOD USED)
The GM 4L60E two-piece case (removable bellhousing) 1998–2003 transmission fits 1998–2005 GM trucks, SUVs, and some performance cars, commonly with a 4.3L, 4.8L, 5.3L, or 6.0L engine. The 1998–2000 models use a 298mm input shaft, while 2001–2003 units (often 4L65E) shifted to a 300mm input shaft and deeper bellhousing, making 1999–2002 the most versatile interchange range.
Compatible Vehicles and Applications (1998–2003 Era)
- Chevrolet Silverado & GMC Sierra 1500 (1999-2003): 2WD and 4WD
- Chevrolet S-10 Blazer & GMC S-15 Jimmy (1998-2005): With 4.3L engine
- Chevrolet Astro & GMC Safari Vans (1998-2005)
- Cadillac Escalade (1999-2003)
- Chevrolet Tahoe, Suburban, Yukon, Yukon XL (1998-2003)
- Chevrolet Camaro (1998-2002)
- Pontiac Firebird (1998-2002)
Critical Interchange Notes
- Input Shaft Length: 1998–1999 generally use a 298mm input shaft, while 2000–2003 transitioned to a 300mm shaft. Ensure your torque converter matches the input shaft length.
- Bellhousing: The two-piece case allows for swapping to match LS-based engines (long bolt) or traditional Small Block/V6 (short bolt).
- Electronics: 1998-2003 models mostly use the 13-pin connector and PWM (Pulse Width Modulated) pump, but ensure the “PWM” cast is present on the pump cover.
- 4WD/2WD: You cannot directly swap a 2WD transmission into a 4WD vehicle without changing the output shaft and housing.istent, non-internal speed sensor electronics.
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