dana 44 question

[johnnyfitz14]

Im so lost on this... i just got a dana 44 and its id tag says its has 3.54 gears but i looked at the ring gear and it says 4.10 87spicer then a bunch of random numbers none saying 3.54 so is 4.10s the gear ratio?

heres a picture

http://im1.shutterfly.com/media/47a0db24b3127ccefa5e5d1c28b600000030O10EYuGjRwzZsg e3nwE/cC/f%3D0/ps%3D50/r%3D1/rx%3D550/ry%3D400/

[jimgrms]

apears to me that the po regeared it !

[.40CalPatriot]

apears to me that the po regeared it !

x2!

[Frank Z]

Can you post a better picture that show the numbers more clearly or just type up the numbers from the ring gear?

[Hypoid]

How about April Tenth, 1987???

I'll betcha that if you were to count the number of teeth on the ring gear, and count the number of teeth on the pinion gear, and divide the small number into the big number, the answer would be 3.54. ;)

[YELLAHEEP]

Generally, the last pair of numbers along the ring gear are the ratio.

So, say the numbers are "39 11" just divide 39 by 11 and you get 3.54.

But I agree with Hypoid - the first numbers are usually a date stamp.

You can also look at the flat surface on the pinion gear, sometimes the ratio is etched/engraved there.

http://www.nsor.com/FAQs/GearSetRatioShown.gif

[Frank Z]

That's what I was getting at.

[Peregrine]

Can't you just give the rotate the ring (axle shaft) one full revolution and count the revolutions of the pinon yoke? Always seemed to be the easiest way for me in the junkyards. If the pinion yoke rotates a bit over 4 full revolutions...you got yourself a 4.10/1 ratio. Am I right? Thats the way I always did it when I didn't want to remove the cover.

[johnnyfitz14]

thanks for al the help guys :rof:
I counted the teeth came up with 46 ring gear and 13 pinion so it like 3.5384.....
i just wanted to make sure before i swapped it in.