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GMC4Zee last won the day on April 7 2021

GMC4Zee had the most liked content!

About GMC4Zee

  • Birthday 12/29/1960

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  • Name
  • Location
    Alden, NY
  • Gender
  • Drives
    Blue 2021 3500 AT4

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GMC4Zee's Achievements


Enthusiast (4/11)



  1. These are mine on my '21 AT4. I have red caliper covers with AT4 writing in color of truck. Sorry as they are a little dirty.
  2. Shawn T, I feel your pain. I went through the same thing about 3 months ago. Sorry I did not see this sooner. Its funny if you watch the current GMC commercial they show a HD towing a 5th wheel and talk about "invisible trailer" which we all know is bull. BTW search here on the forum, there is a lenthy tread about moving the camera connection into the bed. I did this and its not too hard. You have to purchase 2- 3 foot extension cables for the camera (vendor info in tread) but the connector swaps from the bumper to the bed pretty easily. Just have to scrape off some bedliner so the connector seats well enough to get the clip on. Should be a factory option if you order the 5th wheel wiring.
  3. https://www.ebay.com/itm/294717518012?chn=ps&mkevt=1&mkcid=28
  4. Nocturnalmotors, I have been trying to decide whether to go with this one or the OEM one. Price is only about $25 more for factory. Seen some reviews that the boost one gets phone hotter and the OEM one has an annoying brighter light that cant be dimmed or turned off. I also have not see where it plugs in. I know the boost one goes to the lighter socket power. Any other thoughts you can share. Did you look into the OEM one?
  5. Thanks milleda31, tat is exactly what I was looking for!
  6. Wow, does anybody think that almost $500 for the Sulastic shackles are worth it? I have read good results about them but that is pricy. All they are is a two piece design with a spring loading.
  7. So my question is has anybody retrofitted a charger into the lid like the previous versions of trucks had? Reason for this is 2 people in the front both with phones, I want a second charger option besides the old cable. My 2016 had it in the storage compartment lid.
  8. I purchased the trailer sensors when I bought the truck and just had them installed a month ago. I could not get them to program with the sensor finding device. It has worked with the truck tires when i rotate them but not the trailer. I had to use the "let some air out" method to get them to learn. Anyone else have this issue? Sorry for the hijack.
  9. I'll see if I can find my build sheet to help you out. But I found this : https://www.gmfleetorderguide.com/NASApp/domestic/proddesc.jsp?year=2022&addOptions=false&regionID=1&divisionID=2&type=0&vehicleID=22227&section=oi_def&page=1&pagenum=1&butID=3
  10. All I can tell you is the camera that interfaces with the truck is wired and you need to have the female receptacle in the bumper to plug into. I have an AT4 with the full trailering option and cameras. There may be a universal harness back there that you can get the receptacle and wiring to plug into but I am not sure. I have a 5th wheel and moved the 7 pin and camera connections into the bed and swapper the bed ones to the bumper. I had to buy extension cables for the camera connections to do this. I am sure someone will chime in that has done this or has more knowledge on the conversion.
  11. Another JR, what is the cost of the lighter front springs? Would it help to turn the torsion keys some to lower the front end without the swap? I have Sumo springs on the rear in place of the bump stops. This limits the squat by about 1/2 inch when hooked to 5th wheel.
  12. Whenever either driver gets in the truck and starts it up, I get a message to 'login with a password in order to continue using connected services". I have tried Sirrus XM password, MyGMC password and the password for the wifi. None of them is correct. So does anybody know what it is asking for? You can click remind me later and everything works but it is just annoying! I do not have a Onstar plan either.
  13. I have this option and tried to learn the sensors but it would just time out. I did not have the truck running as someone had mentioned. Will try that next. Thought maybe my tool which worked for my 2016 was not compatible with my '21. Tried to set up invisible camper mode with my 5th wheel. Had to lie about the size but it comes up. Just have to tweak a few dimensions to make it work better.
  14. I applaud your gas decision as that was my reason also for going gas. My 5th wheel is slightly less with 12K trailer weight and about 2200 at the pin. Pulled a few of the mountains in PA and I say just let it rev. That does not hurt the engine although it does lower the gas mileage. I average about 8mpg towing but the truck seems to be getting better mileage wise around town (14mpg) unloaded. Camping season is coming up so hope to gain another .5 mpg. I have the 6.8' bed and Anderson hitch which puts the pin over the axle. I did put sumo springs on the rear leafs and it reduces squat by maybe an inch but truck looks level when hitched. Have not went to scales to verify. I do have cameras on side mirrors that help on turns when connected to trailer. Just wish GM offered a larger fuel tank. 36x8=288 miles till empty.
  15. Question, tight area to get to bulbs. Is it a twist out base? Clockwise or counter. I know its a wedge bulb once I get the base out.
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