I used tinted vinyl and a heat gun over the amber lens. Has been on for a couple years and has not peeled at all. I'm very happy with it.
No, I haven't tried to remove the headrests.
Replacing the license plate bulbs was very easy. There are instructions in the manual of how to replace the bulbs, so I'll just post a couple pictures of the before/after. Here are the bulbs I purchased: https://www.amazon.com/gp/product/B00OYT1322/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
Changing the reverse bulbs was somewhat easy, though a 2nd set of hands is a big help. There is only one 7mm bolt you have the remove in the tailgate door panel, the rest are just clips in the door. The bolt is under a cover in the inside tailgate pull handle. You also have the disconnect the tailgate close button wiring harness to be able to remove the door panel. The bulbs are easiest to remove with needle nose pliers, they come out by turning counter clockwise. I am very happy with this upgrade, the LEDs put out a significant amount more light than the OEM bulbs. Here are the bulbs I ordered: https://www.amazon.com/gp/product/B01I3OTWQ2/ref=oh_aui_detailpage_o00_s01?ie=UTF8&psc=1
I hadn't had much luck finding bulb sizes for my wife's 2017 GMC Acadia online, so I thought I would do a short write up on my install. The 2017s use a 9012 headlight bulb for all trims besides Denali, as that is the only trim that comes stock with HID bulbs (we have a SLT1). I had used theretrofitsource.com previous to do a HID install on my 2015 Silverado, and I knew they had a kit specific for Sierra's that use a 9012 bulb. I spoke with the customer service team at The Retrofit Source(TRS) and they told me I would be best off trying that system as it comes with the necessary relay/capacitor link to not throw any codes with the new headlights. Here is a link to that system: https://www.theretrofitsource.com/hid-systems/application-specific/2014-sierra-morimoto-elite.html That being said, the install was fairly straight forward. The headlights were very easy to get to. You are required to drill a hole in the dustcaps as the wiring for the HID system has to go through them (TRS provides rubber grommets to make this a water tight seal). I mounted the relays to the back of the drier side horn mount. Both driver and passenger ballasts were zip tied to a cross members under the hood and the igniters were zip tied to the ballast mounts. As for wiring, I tied into one of the fuse block legs for the positive and right to the negative post attachment for the negative. The capacitor also requires a ground and I attached it to a bolt on the cross member the ballasts are attached to. Below are pictures of the install as well as some before and after pictures of the light output. I also switched out the reverse bulbs and licnense plate bulbs with LED. Pictures will be in subsequent replies to this post.
Mirrors look good. I bought some vinyl tint and applied to my tow mirror lights, was pretty easy to do with a heat gun and I think it looks good. They look black during the day. Just an idea to get rid of the amber.
There is also a electrical connector attached to the base of the seat belt that if disconnected will stop the chiming. I always wear my seat belt but have forever been in the habit of putting it on after I start the truck and that constant chiming was ear splitting. My 08 sierra would only chime once you were in drive.
Just as a follow up to this topic, I decided on the 275/65/20 Duratracs. Since I do not have mudflaps, I can report that there is absolutely no rubbing whatsoever at full lock in drive or reverse with a bone stock suspension setup. I have not installed the drop shackles yet, but I am thinking about only dropping the rear one inch to leave some rake for when I do pull my travel trailer. Thanks again for everyone's input!
This is my first go around with a 2500 and the 6.0. It's a 2015 that I bought new in February of this year. This has become more noticeable (just now audibly) now that I have a Magnaflow muffler on the truck. When you are just cruising around maintaining speed, it seems like the RPMs surge in the 1500-1750 range, like the truck is lugging, or pulsing, or searching for a gear or something. If I give it more gas, it will downshift and feel fine. When it is doing the surging, it feels like it has no power, until like I said, you give it more gas and it downshifts. Is this a common occurrence with these motors and nothing to be concerned about or should I raise a question with the dealer?
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