What are the part numbers i need to do this up grade to my truck.

Completed! Thx again. What are the second set of wire ends for? Also, 5 switchs, 4 wire ends... is the fifth behind the cab brake light? Like the tourniquet!

I wonder if the multi flex tail gate has something similar, I honestly have not looked at either tail gate close enough. On another topic I was curious what you found as per accessing that grease zerk on the steering idler arm bracket assembly, if its reasonable to reach behind a skid plate for example and get to it or if its a total pain in the rear as I am only guessing that perhaps the kit that I see Moog as one example makes, might fit ?. Just have not come across anyone talking about this series of truck and how good or bad it is to access as taking off a bash plate etc gets old really fast if that is what it took to access to grease it. You see where I'm going with this, if it was a good mod to do ... video time and making you spend money LOL.

easy fix. very cool!

Great content and a good fix. The GM solution solves a small problem by creating a larger one. I put a topper on mine, so she should stay dry.

Just got new skins for my 2020 6.6 gasser and now I have to recalibrate wheels, I was wondering if you have done this and what device did you purchase with which to do this? Thanks.

Well that's a neat idea! Thanks!

Does this void any GM warrantys?

What’s the reason for the 175amp fuses at each end of the positive cable? Are 2 fuses necessary?

I had to look back at the video where you installed the second battery and realized you went with the diesel fuse block for a higher amperage tie in. I presume your truck has the one 220 amp alternator due to the plow prep package. So here's my question that you may be able to answer, as per the same idea in tying the two batteries together. Here's the scenario, I had just ordered a truck with the L8T and decided to choose the two alternator setup which also then comes with the two batteries ( 220 amp main with 170 amp that charges the second battery ). I also ordered the truck with the upfitter kit if that makes any difference to the whole picture . But I did not order the plow prep package and the reason for that is I did not want the larger torsion bars due to the stiffer ride, the second battery with the way they intend it is for an RV as you pointed out and so I thought in case I did want a trailer I may as well throw the stuff under the hood the economical way by ordering it all. My question is, what would happen if the two batteries were tied together with the existing parts, is it even possible and would the fuse block/relay or whatever is all with the secondary battery not be capable of dealing with the amperage draw, and would there be an issue with two alternators that would then effectively be tied together charging the same two batteries, if it would confuse the trucks computer or something weird like that.

'22 with 67k miles. I get an alert on the display between every oil change when I get to about 20% on oil life left. The alter says engine oil low and oil. I park in same spot on driveway and no oil spots

Thats easy and all but wondering if they are the same on the older models before this like a 2023

Off the subject do you know how to get constant power to the usb and usbc plugs my 05 chevy had constant. It says f26 27 28 fuse

Do you have a link to the air filter extension hose to the throttle body?

I have one on ours also.

Quick question for you old schools who know more about diesel trucks than I do. I’m looking into buying my first diesel soon and I’ve seen it gets around 18mpg with a 36gal tank. My calculations say I should go at least 600 miles fuel range before hitting empty. But I keep seeing videos where diesel owners fill them up and doesn’t seem to go over 390 fuel range on a full tank.

thanks for the heads up

Thanks for the link to the fluid! I found it in the description

Thanks, can you verify the GM part number? I'm tracking 104091

Bought my truck 2 days ago and noticed this wire harness and fuse block sitting in the back seat after got it home. Salesman had no idea what it was when sent picture of it. Guess I have mixed feelings about it - glad that it came with the truck, kinda frustrating doesn’t come installed. Anyways, thanks the video! P.S. I think the blue tubing added about 5hp 😝

Would you happen to have the part numbers for the batter hold down bar and the 2nd battery ground strap?

Another thing is remember to grease the 9 grease points on the front end of the truck. They were completely dry when I got the truck.

I just checked the fluid level in my 2024 2500 ZR2. Sure enough, I had to add a quart of rear diff fluid to my brand new truck.. Called Chevy to check the fluid type for the ZR2, and he gave me the correct weight etc. He told me that when the strike happened, many of the people working did not pay attention to what they were doing. Thank you for uploading this video. Did you check the front diff level???

nice!

Good stuff! Would love to see how you made and installed it.

Do you have any videos about the wax frame? I have a couple scratches on the frame on a 2024 and am trying to figure out if Injust spray with fluid film or something else

Sweet!

never thought about that!

Did your truck come with a factory Plow wiring?

Cool idea!

100 comments

So did you ever find out where or who you caught the drip from? Hopefully the old lady doesnt catch you breakin into that fine ass brunette a couple doors down....AGAIN!.....

great info!

That should prove interesting if you do create a complete system that covers all three ventilation hoses. Now how to go about measuring the amount of oil captured could be rather difficult, while weighing the filters before and after would show both water and oil captured. Draining them I assume would only show a portion of what they contain as the filter media would soak up a lot of oil I would tend to think, however they could be cut open and that might tell some of the story. Now as per actually seeing what these L8T engines are building up on their intake valves, I wonder if anyone has dug into them yet with a higher mileage engine to capture video or photo of what is there and relative to other GDI engines on the market.

Yes please make a video of how you did it. I have one just mounted on the spare battery connection. I’d like to see how you did all of them.

Very good info!

Great video, do you have the part # for the add on secondary fuse box?

What does the lights do on the inside of the turn single they don’t light up

do they always have the wire at the third brake light i need 12 for an emergency light but have yet to pull the trigger on the upfitter kit

Inútil

GM does the first oil change for free so why spend your hard earned $$$ on buying the oil and filter?

Thanks for the honest review. Also, with the emission restrictions, kill the diesel HD engines. It's not worth the money and headache. Stick with has. That's my opinion

Does the passenger seat have electric control

Just had mine replaced for the recall, simple and they contacted me very promptly and effectively communicated the issue in their letter and I had actually experienced the issue so I was happy to get it fixed!

Very nice video. Is that motor speced for synthetic? I am not that familiar with it. Either way amsoil is good.

I'm about to purchase a 2024 6.6L gasser coming from a Ford 6.7 diesel that blew up at 102k miles and was wondering if I should just get the Duramax instead.

UAW at its finest! Got their raise but still doing 😂crappy work!

Glad I found this video. Just got a new 2500HD a few weeks ago and checked mine today - it was low and took a little over half a quart to get it up to 1/2" below the fill hole. Thanks for posting this.

So I have a story to see if this is possible. We took our fifthwheel from Maine to Georgia in the spring and got this signal all the way. Now mind you we bought this 2024 in the late summer of 2023. We had a tow behind camper then and got the same signal. Now back to the story. I called everyone, googled and youtubed to see what could be wrong. Why was i getting a brake warning and a check wiring warning. I assumed it was the plug or something and someone said sounded like a ground problem. On our return to maine after a stop for fuel the trailer Ebrake deployed. Well not really, it melted in place. Then the whole wire harness started to melt to the battery. My husband jumped out of the truck turning off the battery, didnt stop it. He quickly got the tool box and cut the battery wire and it stopped the melting smoke show. Could this issue possibly have been the reason for this? Everyone says there is no reason for the camper itself to do this. Then along comes the recall in August. I believe it is too much of a coincidence especially since we did indeed get the brake warning ding ding. Thanks for your help

I just bought a 2500HD a few weeks ago, same model as yours (same color even). If I understood your adjustments correctly, you left 1/2" forward rake on the truck so your front fender measurement after the adjustment was about 41-1/2" (42" at the rear fender less 1/2" for the front)?