Differential Ratio

[qtipextra 5,000+ posts]

How do u know/find out what your differential ratio is?

Click to read more...

 

[randomco 10+ year member]

in the owners manual.

 

[analogkid]

count the teeth on the ring and pinion and divide the pinion # into the ring #. or look at the axle tag code.

 

[qtipextra 5,000+ posts]

count the teeth on the ring and pinion and divide the pinion # into the ring #. or look at the axle tag code.

I dont know wut ANY of that is. Thanx anywayz tho.

 

[analogkid]

what kinda car you got? make model year and such i can find out for you.

 

[marleyskater420 5,000+ posts]

look in the owners manual..its the final drive ratio

 

[packerfan 10+ year member]

If you have the V6 you more then likely have 2.95s or 3.03s....

 

[Green1340 10+ year member]

Put a chalk mark on your tire & one on your driveshaft. While watching the driveshaft, have a buddy push your car until the tire makes one complete revolution. Count the number of times the driveshaft turns in one revolution of the tire. If the driveshaft turns a little over 4 times ratio is around 4.11, a little over 3 turns 3.08, a little under 3 turns 2.73 etc. Get the idea?

 

[analogkid]

Put a chalk mark on your tire & one on your driveshaft. While watching the driveshaft, have a buddy push your car until the tire makes one complete revolution. Count the number of times the driveshaft turns in one revolution of the tire. If the driveshaft turns a little over 4 times ratio is around 4.11, a little over 3 turns 3.08, a little under 3 turns 2.73 etc. Get the idea?

thats a wonderful idea and i would normally say that too but he drives a corsica.//content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif

 

[qtipextra 5,000+ posts]

Its a the 4 cyl model. Yea, yea, yea. Say wut ya want. I just wanna know the ratio to find my rpm at a certain speed, cuz I dont have a tach.

 

[qtipextra 5,000+ posts]

No,I dont know gear ratios, but thanks for lookin that up for me Jmac.

 

[analogkid]

a FSM and the vin will do smartazz

 

[bri487 5,000+ posts]

any of you feel like finding the gear ratio of my truck. stock i have a 3.73 (i think), but when i changed to a 35" tire, i wonder how much it changed. i wonder if it dropped more than like 3.50 or 3.30. i wonder what i would come out to with 4.10 gears?

 

[bri487 5,000+ posts]

It doesn't work like that ...

there must be a chart somewhere for a stock chevy rear end wirth larger tires. everywhere you look, jeeps have them and so do yotas, i am just not into looking for one for mine. those other ones are easy to find. when you change your tires size it effects the final drive ratio.

 

[qtipextra 5,000+ posts]

//content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif To accurately calculate the engine speed, you need:
An accurate speedometer

Current gear ratio

Final drive ratio

Tire diameter

Either that or just install a tachometer ...

No, where would I put a tach? Iv tried to find the advanced guages for my corsica with the tach, but they are few and far between. I dont really need to know that bad, I was just curious. But, again, thanks for the info.