Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN PASSENGER EXTENDED, 5.0 MREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 976 (AUTOMATIC TRANSMISSION - ALLISON - SPECIFICATIONS)SPECIFICATIONSTRANSMISSION GENERAL SPECIFICATIONS
2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 M
Transmission General Specifications
2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 MSECTION Transmission General Specifications
WARNING: This page is about a different car, the 2001 GMC Sierra, 2001 GMC Cab & Chassis Sierra, 2001 Chevrolet Silverado, and 2001 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Transmission General Specifications
| Name | Allison 1000 Series |
|---|---|
| 1st Range Ratio | 3.10:1 |
| 2nd Range Ratio | 1.81:1 |
| 3rd Range Ratio | 1.41:1 |
| 4th Range Ratio | 1.00:1 |
| 5th Range Ratio | 0.71:1 |
| Reverse Range Ratio | 4.49:1 |
| Transmission Fluid Type | DEXRON® III |
| Maximum Gross Combined Weight (GCW) | 11 800 kg (26,000 lb)* |
| Maximum Gross Vehicle Weight (GVW) | 9 000 kg (19,850 lb)* |
| * Or Vehicle Manufacturers Chassis Rating, whichever is less | |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.