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Faster tougher stronger

GM 700-R4, 4L60, 4L60-E, 4L65-E & 4L70-E

Heavy Duty & High Performance Upgrades

Running the 700-R4/4L60-E family of transmissions at extreme power levels demands innovative parts designed not only to work better, but to work better together. From street/strip upgrades and heavy-duty jobs to top-tier racing builds, Sonnax makes it easy to deliver rock-solid transmissions customized for any performance level.

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4l60e build sheets 3d2

Build the killer 4L60-E with Sonnax

Whether you’re starting from scratch with a heavy duty/performance build or optimizing a seasoned racing vehicle, key transmission areas MUST be addressed to realize the full potential of these units.

View, print or download build charts

Sonnax high performance products meet the toughest challenges faced by hard-working, daily-use drivetrains as well as racing units going all-out on the street or track.

Learn About Sonnax Heavy Duty & High Performance See All Heavy Duty & High Performance Upgrades