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15 mar 2024 · Gear ratios in a 4L80E transmission have a huge effect on vehicle performance. Proper selection of gear ratio can enhance acceleration, towing capacity, and drivability at large. Below is an analysis of how different gear ratios impact various aspects of vehicle performance:
General Motors 4L80E and 4L85E 4 speed automatic transmission specs, ratios, and information. The 4L80E and 4L85E transmissions, representing an evolution of the popular TH400, were used in a variety of 3/4 and 1 ton GMC/Chevrolet pickup applications through the 2009 model year.
Here are the 4L80E ratios it features in each gear: First: 2.48; Second: 1.48; Third: 1.00; Fourth: 075; Reverse 2.07; The maximum output torque of the 4L80E transmission is 885 ft. lbs. while the top engine input torque is 440 ft. lbs. Die-cast aluminum is the transmission’s case.
The 4L80 nomenclature denotes that the transmission is a 4-Speed, Longitudinally mounted, and for 8000 lbs. vehicle weights. It's RPO code is "MT1" and has been domestically manufactured in GM's Ypsilanti and Willow Run plants. The 4L80 features ratios in each gear as follows: First: 2.48, Second: 1.48, Third: 1.00, Fourth: 0.75, Reverse: 2.07
The 4L80e uses four forward gears and one reverse gear in the following ratios! First gear:2.48, second gear:1.48, third gear:1:0, fourth gear:0:75, and reverse gear:2.07. It has a maximum input torque of 440 lb-ft and a maximum output torque of 885 lbs-ft with a vehicle weight rating of 800 lbs.
16 paź 2023 · The 4L80E transmission typically has the following gear ratios: 1st gear – 2.48:1, 2nd gear – 1.48:1, 3rd gear – 1.00:1, 4th gear (overdrive) – 0.75:1. The gear ratio change occurs as the transmission shifts through its gears.
14 cze 2016 · Or you modify the trans for a deeper 2.98:1 First gear, to create a six-speed with 2.98/2.24/1.57/1.18/1.00/0.75 ratios, but this is a pricey conversion.
