mhuppertz

Any guesses on my Dana 70 gear ratio? I know it's not 410, but can't remember if it's 373 or 355. I guessed 373 when I bought a new speedo gear for the gear vendors, but can't drive it yet because the speedo cable is wrong, and I don't want to dump $40 bucks worth of Mopar Synthetic gear oil out the speedo hole!

ihpower

look on the rearend it is usually stamped on them some were. if not try the jacking up one side with the truck in N then count the roations of the drive shaft with one rotation of the tire.

mhuppertz

No Tag. What's common?

apwatson50

I don't believe you could get 3.73 gears at that time, if it was an auto from the factory it is most likely 3.08, if it was a getrag it is most likely 3.53, however if it was a 1-ton than either could be 4.10's. I would be 95% positive you have 3.53 gears.

gman07

Probably 3.54's. Thats what my truck has, and IIRC the 3.73's were only on newer trucks.

greasemonki

should be printed on the glovebox door

torquefan

93 model year only offered 4.10 or 3.54 gears.

AlK

Lift the hood and look up there should be a tag showing you the ratio.

rlyons

It will be a 3:54 or a 4:10

Ron E

And you call that a stupid question?!, just be patient and watch me. I'll show you how it's done.

This is my first diesel, and I have to keep going to the definitions thread just to follow along.

I'm making a list, I'll show you professional grade stupid!

Geico266

Hey now! I'm the stupid one around here!

mhuppertz

Thanks for your support, but you have to admit, asking others specifics about my truck is pretty stupid!

Geico266

Na. Try searching your question before you ask and if you can't find a satisfactory answer we'll make one up for ya.

Hillbilly_Deluxe

How about we all agree to disagree, you're all stupid!

Ron E

Like way, way back in biology class.