A 2018 F-150 Raptor using a 3.5L EcoBoost in front of a 10R80 transmission developed a noise at the rear of the transmission. The shop eventually diagnosed this as a. 10L90 vs 10L80 Gear ratio. I am moving from a 2020 Camaro SS to a 2021 1LE with the 10 speed transmission. Where is the 10L90, 2.85 ratio different than the 2.77 ratio of the. 10L80 Transmission Problems & Technical Service Bulletins. TSB 18-NA-026 - Transmission fluid leak Problem - Owners may experience an ATF leak coming from under the ... This teardown video includes: 10L90 Pan Removal 00:05 10L90 Filter Removal 00:47 10L90 Valve Body Pump Removal 1:00 10L90 Case Connector 1:16 10L90 Extension. 10L80: 11.5 to 12. Jul 19, 2022 · The General Motors Hydra-Matic 10-speed 10L80 automatic transmissions is a heavy duty, high performance transmission. 10 forward gears. L, for longitudinal placement within the vehicle’s powertrain system. 80, for the robustness level of the transmission (a higher number means that it is capable of handling more power.. "/>.