So driving home tonight I spend a fair amount of time on a 50mph road.  Truck seems to run at about (never realized how goofy our tach markings are) 1800-1900rpm in 5th gear at 50, or drops to around 14-1500 in 6th.  Keep in mind I am empty (I know the towing answer) it’s pretty much flat the whole way (definitely use 5th to climb) just curious about the rest of the time.  Opinions?

Freeway was bunched up, will try in the morning.

 

can someone explain what each line represents on our tachometers?  Was dodge too cheap to make them make sense? Or am I just a dull knife in the block? 

Just now, portlandareae28 said:

Freeway was bunched up, will try in the morning.

 

can someone explain what each line represents on our tachometers?  Was dodge too cheap to make them make sense? Or am I just a dull knife in the block? 

Each hash/line is 125 rpm...

12 hours ago, IBMobile said:

There is a label in the glove box with the vin number and some build info.  One piece of info is the differential size.  It's faded but I can still read mine.  

Turns out my paperwork that says '01 245hp 6-speed has to have 4.10 is dumb.

 

I heard somewhere there is a sticker in the glove box that little elves just put there last night because it's never been there before and it says I have 3.55 which explains my 2k rpm at 72 mph with stock size 235's on my 2wd. Always bought off the door sticker.

My sticker was under the hood. But I have a 99 Auto and shes a dully so my trucks turns hard. i think im 2,000rpm at 70mph