GMCSierra99

I just did this on Saturday and I used Amsoil 75w-90 in both the front and rear diff. I got the easy squeeze container and they worked pretty well, no need for a pump. I also did the transfer case with Amsoil ATF but had to use a pump for that. Just a friendly tip to make sure to get the fill hole bolt out first before you drain the fluid. It took me a couple hours with no lift or jacking up the truck, yes a pain in the butt but its doable.

They replaced my Rad, thermostat and stat housing all under power train warranty since the stat is the cause of the crack in rad. They took care of it that day I brought it in. Ask another dealer they should replace it for free. I too had the smell of antifreeze that drove me nuts for a truck with only 40000 miles on it at the time. I now have 65000 with no other problems.

Awesome thanks. I have Mictuning light bars I want to mount. Thanks again.

What is the name of this bar. I want to add a couple 8" light bars I have laying around and aim them like this to add to my 32" curved light bar hidden in my grill.

I have had the new pedal installed for a few weeks now and I am still noticing a positive difference. It is still not perfect but much better than the old pedal. I would give it a try for anyone that has the old design. Thanks to the OP for looking into this and posting his results. Much happier with my truck now. Its a 14 Sierra AT CC SB 6.2.

What is the PSI on the M1-212 Mobil one filter? I could not find any specs on their website? Anybody know?

After a couple days driving around I can say that yes I have noticed a difference. It is not a huge improvement but an improvement non the less. I noticed it most when taking a left turn after slowing down but not stopping and then accelerate into the turn. The old pedal it would take about 3 seconds before the truck would go, this drove me nuts and had done it since day one I got the truck in July of 14. With the new pedal installed it has not happened once and I took many left turns and test driving trying to duplicate the dely. I also just tried to drive not thinking about it to see if I would happen to noticed anything. So yes I do think it has helped like the original OP has stated. I have a 2014 Sierra with adjustable pedals with no close pin support behind the plate.

Just for the heck of it I installed the new part number on my 2014 sierra with adjustable pedals. I will report back after a few days of driving around. If I do not notice much of a difference I will just return the pedal. I am thinking though that only the 14's will notice a difference since most already have the new pedal. Would maybe have something to do with how the truck was programed with the old pedal sensors vs the newer design. I am no expert but just trying to make sense of how it would make a difference if any. More to come.

Ok I think I answered my own question. This is from Rock Auto. ACDELCO 23362231 {#20972082} GM Original Equipment Info Fits7,700 lb Vacuum Power Brakes; w/ Fixed Pedals (position of the accelerator and brake pedals can't be changed); 6 speed Automatic trans. Or7,700 lb Vacuum Power Brakes, w/ Adjustable Pedals (position of the accelerator and brake pedals can be changed); EXCEPT DRIVER MIRROR AND SEAT ADJUSTER W/ENHANCED PERSONAL MEMORY(A45) OrDRIVER MIRROR AND SEAT ADJUSTER W/ENHANCED PERSONAL MEMORY(A45), 7,700 lb Vacuum Power Brakes, w/ Adjustable Pedals (position of the accelerator and brake pedals can be changed)

I wonder if this is the same part number for the adjustable peddles? Anybody know if this would be the same if you have the adjustable peddles.

Roadking01 you may have this issue as I did with my 14 sierra. It was fixed and covered by the powertrain warranty

Sweet glad they are taking care of it. After you get the truck back keep an eye out or more of a nose out for the truck to smell a little hotter than before. I noticed this especially after towing. Maybe its just me but I am sure I smell it and guessing its because of the new stat. It is not an antifreeze leaking smell just a hot smell if that makes any sense.

The dealership replaced my T-stat and rad under the powertrain warranty on my 2014 Sierra. They said the T-stat was part of the engine that is covered by the powertrain warranty and therefore the T-stat was the cause of the cracked rad, they would also replace the rad under powertrain. Although the dealership did not connect the tranny cooler line correctly and left me stranded on the side of the road spewing tranny fluid every where. I was pissed but they took care of it. Has been fine since besides it smells a little hotter than before.

I had this done under warranty last winter and ever since then I have noticed that the truck smells a little hotter especially after towing. Has anybody else noticed the same thing. The temp gauge has never cracked 210 and all seams fine. I am guessing this is just how the new rad and thermo stat work.

Stock 2014 Sierra 6.2 3.42 gears pulling 3500lbs boat. Getting around 15mpg on the highway running 91 non-oxy gas avg speed 55-60 mph. Im guessing that will drop some when I hit the freeway with speeds in the 70's. Have only towed the boat once on the highway so I dont have a great handle on what the mpg's will be but I hope they stay close to the 15 I did get.