Specifications
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Transmission Variant
4L60E transmission
The 4L60E is a reliable, electronically controlled 4-speed automatic transmission used in GM vehicles from 1993 onwards. Designed for rear-wheel-drive cars and trucks, it features smooth shifting, overdrive for fuel efficiency, and a strong build for everyday driving, towing, and performance. It is commonly found in Silverado, Tahoe, Camaro, Suburban, and other GM models. The gear ratios are 3.06 for 1st, 1.62 for 2nd, 1.00 for 3rd, and 0.70 for 4th, with a reverse gear ratio of 2.29. It can handle around 360 lb-ft of torque in stock form and uses Dexron III or VI transmission fluid.
4L60E Transmission 4×4
The 4L60E 4×4 is essentially the same transmission but designed for 4-wheel drive (4WD) or 4×4 vehicles. The key difference lies in the transfer case and the output shaft, which are modified to handle the additional torque and the need to distribute power to all four wheels. The 4×4 version is used in trucks and SUVs that require enhanced off-road capability and towing power.
Frequently Asked Questions
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What vehicles were factory-equipped with the 4L60E?
It’s commonly found in Chevy Silverado, Tahoe, Camaro, Suburban, GMC Sierra, Yukon, and Cadillac Escalade models from the early 1990s through 2010s.
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What’s the difference between the 4L60E and 700R4?
The 700R4 is hydraulically controlled, while the 4L60E uses electronic shift solenoids and sensors for smoother shifting and better tuning options.
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Are all 4L60E transmissions interchangeable?
No. Variations exist in bellhousing design, wiring plugs, bolt patterns, and tail shaft lengths based on model year and drivetrain.
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How much torque can a stock 4L60E handle?
A factory unit typically handles 350–375 lb-ft, but upgraded versions can exceed 450–500 lb-ft with enhancements.
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Do 4L60E transmissions need cooling upgrades for towing?
Yes. An auxiliary cooler helps prevent overheating and extends clutch life under heavy load.
4L60E Transmission
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