UsaKansas

I believe the manual said NLGI 2 grade grease. I found some at Menards.

Looked at the rear axle again. It does have a fill plug, and a drain plug, so am going to check that fluid level soon. Not seeing any way to check the transmission, or transfer case. Maybe there is a sensor on them that lets you know if there getting hot, or out of fluids? Hope to find out soon.

If you bought a 2020 2500 HD new, the only things you have to do the first few oil changes is make sure the proper oil, and oil filter get changed when it's suppose to, plus rotate the tires, and grease the 9 grease zerks with the proper grease every other oil change? You have to trust the transmission, transfer case, and rear axle is at the proper fluid level? I realize later on there will be replacing plugs, air filters, and such, but kinda creeps me out when i don't know the fluid levels in all the gear boxes.

Yes it is breathable. I tried many cushions. The Ultimate Purple Cushion is the only cushion that didn't flatten out like a pancake. It still has some spring in it, when sitting on it. Driving a 2500HD with 80 lbs of air in the tires, and hard seats was taking it's toll on my old back, and legs till i got the Ultimate Purple Cushion. If you get one, shop around. I think i gave $60 for mine. They ask a lot more on there sight. Either way, it's cheaper than replacing seats, or buying a different truck.

I bought an Ultimate Purple Cushion that sits on the seat. It works wonders. The Purple Cushion is for people weighing under 200 lbs. The Ultimate Purple Cushion is meant for people 200 + lbs.

After reading these posts i crawled under my 2020 2500 HD. All nine grease points were pretty much dry. I was able to grease them all without removing the skid plate, using a grease gun with a one foot rubber hose, and straight coupler. My arms were covered in undercoating, trying to reach the zerks. I will grease it next time with a 90 degree coupler. I believe that will work much better.