March 02, 2016
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 4L60, 4L60-E, 4L65-E and 4L70-E units.
Check out these handy build guides to get maximum results out of your rebuild!
Quick upgrades for big performance without a big price tag.
Upgrades for performance recalibration and durability, no trans removal required. Most change in shift feel comes from the servos.
Heavy-duty parts and recalibration allow transmissions to endure power levels beyond what a stock transmission is built to handle.
The ultimate collection of 4L60/E upgrades for maximum strength, durability and quick shifts, including Smart-Tech® parts to ensure trannies stay out of the shop. When installed in a 4L65-E or 4L70-E, a Sonnax Level 3 build delivers a big power tranny that not only exceeds the capabilities of the 650 ft-lb 4L75-E, but is moving well into 4L80-E territory. For those on the fence about swapping transmissions, it's a great way to avoid the complications and inefficiencies of converting to a 4L80-E.
This video breaks down how to transform a 4L60-E, 4L65-E or 4L70-E into a top-tier performance transmission with Sonnax Level 3 build components.
Click here to view PDF if the tech resource does not appear below.
March 02, 2016
February 08, 2018
October 24, 2018
April 07, 2015
February 26, 2021
While Sonnax makes every effort to ensure the accuracy of technical articles at time of publication, we assume no liability for inaccuracies or for information which may become outdated or obsolete over time.