If your 6.7 Powerstroke has been shifting hard, banging into gear, or just doesn’t feel right anymore, this video is for you. We’re taking a look at a truck with harsh shifting issues and installing an ATS Diesel Performance 6R140 Valve Body to see if it solves the problem. While we’re in there, we’re also giving the transmission a full service using Doc’s Diesel 6R140 Transmission Service Kit.
We’ll walk you through the install, show you what we found, and let you see how the truck performs afterward. Products featured in this video: ATS Diesel Performance 6R140 Valve Body – #303-900-3416 Designed to improve shift quality, transmission performance, and overall drivability for Ford’s 6R140 automatic transmission. Doc’s Diesel 6R140 Transmission Service Kit (2010-2024) This complete kit includes the transmission filter, pan gasket, and premium fluid needed to properly service your 6R140.
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