Upgrading & Addressing the 10L1000 "Allison" 10-Speed | Jared Ewert
About this episode
Jared Ewert joins Diesel Performance Podcast to break down the GM/Ford co-developed 10L1000 “Allison” 10-speed and why it earned a bad reputation. He explains key differences from the traditional Allison 1000, including drum/clutch material issues on earlier GM units, valve body and bushing failures, and why forums can exaggerate problems. Jared also covers common upgrades (hard-anodized drum, clutch pack fixes), torque converter/pump serviceability, and what Suncoast training taught him—plus a funny story about a 3-liter turbo failure during R&D.
Anthony Bruneni and Chris Ehmke are joined by CPS transmission builder, Jared Ewert. He is here to discuss the 10-Speed "Allison." How does the GM 10L1000 stack up to its fraternal twin, the 10-Speed Powerstroke transmission? What are the common issues with the 10-speed equipped Duramax? How are we looking at beefing up the 10L1000 transmission? The boys cover it all and more right here!
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