Deviant 78400 Transmission Line Rub Fix for 2017-19 GM 6.6L Duramax/Allison Pickups
The 2017+ GM Duramax trucks are finally starting to accumulate enough miles to show a few weak spots. One of these is the tendency for the transmission lines to rub through on the frame side of the passenger bumper mount. The fix is a new transmission line retainer that prevents this from happening.
To download installation instructions click here.