gonna find out my rear end ratio....

[Tx Firefighter]

It's dead simple. I have done it a lot of times. Jack one wheel up off the ground. Leave the other side on the ground. Now, turn the wheel two complete turns and however many turns the driveshaft makes is your ratio.

[prostreetC-10]

Originally Posted by oldblue1968chevy

jacfourteen, i hope you understand, and you others...sorry for my stupidity lol........does anybody else agree with jacfourteen

We just try to have fun on here from time to time.....sometimes it comes off wrong. Some gear heads are super serious. I am not. Didn't want you to think your questions was stupid at all. The chance you take with a forum is that there is no guarantee that you get 100% accurate info. There is no stupid questions though. Sometime we all need to get very simple quesitons answered.

Bottom line is that the "counting the spins" is great if you are looking to buy a truck and want to know if it's a posi and about what the gearing is. If you have already popped the cover, then checking the numbers on the ring gear is the sure thing. The last 2 sets of numbers (4 numbers total) is the pinion teeth and the ring gear teeth. If it says 10 41...the pinion has 10 teeth and the ring gear has 41. 10 into 41 is 4.10 and that is the ratio.

[JP2120]

Its very easy ! Look at the numbers on the side of your ring gear. I see in your pic that it is 41 10. take 41 and devide it by the 10 and you get a 4.10 gear ratio. If in the future the ring gear does not have these numbers then just count the teeth on the ring gear and the teeth on the pinion gear and devide the smaller number in the larger number and that will give you your answer.
Duke

[Big-Blue]

This may be one of the funniest threads I have seen!

happy 4th!

[oldblue1968chevy]

lol prostreet had a good one....


ok new ?

do the numbers i give yall add up to be 3.73 i think they do but duno if im doing it correct seems right...but idk yall go head and laugh at me lol