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Tailgate gap cover GM p/n 84184471

2020SierraDenali
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2020SierraDenali Enthusiast

2020SierraDenali

Posted
Posted (edited)

Just got done installing a tailgate gap cover p/n 84184471.

 

I had a bedrug full liner in my last truck, so the liner already came with the carpet bridge already there so I didn't have to worry about crap falling in between the bed and tailgate.

 

Easy to do. It's double faced taped in place at the bottom of the tailgate and fits the GMC multi-pro tailgate no issue. Fits the standard tailgate too. I don't think it fits Carbon pro bed, though. Not sure.

 

Followed the generally cheesy instructions, but the idea is to open tailgate, take off the cover which covers the bottom inside area of the tailgate, (10 screws, T15 torx head on either standard or multi-pro gate) and the rubberized edge fits up against the vertical panel of the bed and the bottom edge of the horizontal bed channels. Laying out the strip before pulling the double faced tape pre-mask and dry fit it so the lip is making contact with the vertical bed panel and the horizontal channels at the same time.  It comes with 2 alcohol pads to clean the area where the mounting tape goes, so clean the areas well where the tape will stick.

 

Then, while placing one palm on the gap cover and then pulling the pre-mask strip slowly out of the channels, press down firmly as you go to maintain the position until the entire pre-mask is removed and the gap cover is pressed down into place. It's just kind of a large lip seal which is up out of the way, until you lower the gate, and poof, instantly keeps rocks, tools, etc., from falling in the gap. There's a hex key bolt on the passenger side and the gap cover has a pre-cut notch that clears it. Helps in placing the gap cover in the right place as well.

 

After installation, you replace the tailgate cover which covers up the top edge of the gap cover. 10 screws and done.

 

Again, pics to follow.

Edited by 2020SierraDenali
Comscan Enthusiast

Comscan

Posted
Posted

Could you post photo's of your finished work, thinking of getting this too.

 

Thx

  • 2 months later...
todd308 Enthusiast

todd308

Posted
Posted

Was looking at this after I tried another tailgate seal that was dislodged by a car wash (not sure if it was the undercarriage sprayer or dryer). 

 

Does this also act as a tailgate/bed seal when the tailgate is closed keeping crap out of the bed, or does it only work for that when the tailgate is open?

 

Thanks

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