A little history first. I have a 06 2500 srw CTD mega cab with 19,000 miles on it. Bought it new and the radiator was leaking so I took it into the dealer to get that replaced.
Anyway while in there I tell them that when I am in 4wd and towing up my driveway pulling any load by the time I get to the top the tranny light comes on as I just want them to check it out while it's in there.
So they check it out and say everything looks good but they would get the front/rear and trasfer case fluid changed. So I ask how much and they say $180. So I so while it's there go ahead and do it.
The guy calls back a day later and says the truck is ready (radiator) but they didn't change the fluids because there are 4 different drive lines and my truck has the american drive line that takes a special fluid and the fluid alone is $180 some dollars? The new price is $350 plus dollars to do the change! I said nope and want the info as I am going to do it my self.
Wanted to get some opinions as is this true? 4 different drive lines? That big of a difference on what drive line you have? What kind of oil cost that kind of $$? What is everyone running and cost?
Plus my interior lights only stay on for roughly 10 seconds and I read another thread on here about a flash of the CCM and if that didn't work then the harness needs replaced so I told them about that and they said the flash didn't work and that's how the lights are. BS as another guy on here had his fixed as his dealer called star technical and mine is giving me the run around.

 

If you have a steep long, hilly driveway, when towing up it, you should really put it in 4x4 low.
The 3rd Gens' use Syn Gear oil. From the dealer it costs like 30$ a quart. From an auto parts store is 10-20$.

 

I have tried 4 low and 4 high and the light still comes on/beeps by the time I get to the top regardless. The gauge goes from 180 up to around 200. No tranny issues other than the heating up but I figured I would just have them check as I didn't think it should heat up so fast.
I will do the fluid changes my self just wanted to get to the bottom of the dealers BS huge price jump/change. As one said he probably misquoted me on the price and now is trying to BS me as he said it doesn't take the standerd synthetic that most drive lines take as mine has the american made drive line which I was told was 1 of 4 different ones that come in the truck?