The tailgate cables on the 2007–2013 Silverado/Sierra are a common failure point. They fray, corrode, and eventually break – causing the tailgate to drop unexpectedly or not hold at the horizontal position. Here’s how to replace them quickly.
Symptoms of a Failing Tailgate Cable:
- Tailgate is loose or droopy on one side
- Visible fraying or rust on the cable near the end fittings
- Cable is kinked or bent
- Tailgate drops more than a few degrees below horizontal
Replacement Parts:
Tailgate Cable Set – Fits 2007–2016 Silverado, Sierra 1500, 2500HD, 3500HD – Includes both driver and passenger side cables with mounting hardware.
Tools Needed:
- Needle-nose pliers
- Flathead screwdriver
- 10mm socket
Step-by-Step Replacement:
- Lower the tailgate completely – let it hang on the remaining good cable or support it
- Locate the cable ends – one end hooks into a bracket on the tailgate body, the other end attaches to the tailgate itself
- Remove the old cable – use needle-nose pliers to work the end fitting out of the slot/hook
- Inspect the cable pocket – clean out any debris or rust
- Install new cable – route the same path, hook both ends securely
- Test by opening and closing the tailgate several times
Time Required: 20–30 minutes per side
Tips:
- Replace both cables at the same time even if only one is broken
- Lightly grease the end fittings and cable with WD-40 or white lithium grease to extend life
- Check the tailgate hinge pins at the same time – these also wear and allow side-to-side play
Preventing Future Failures:
Annual inspection and light lubrication of the cables and hinges goes a long way. This is a 5-minute job at every oil change or seasonal inspection.
Has your GMT900 tailgate cable broken? Was this a quick fix or did you find other issues?