Does anyone here know how to calculate the final drive ratio from counting the teeth on the differential gear(pinion gear? as in ring and pinion gear) the last big damn gear on the diff. I have one sitting on my desk from my old tranny and i wanted to know which final drive it was. I've tried those calculator sites, where you input tire size and such, but nothing matched. Oh it is off a crx. Just not sure if it was a Hf dx or si.


[Modified by crxdx, 5:35 AM 2/27/2002]

 

The one on the diff is the ring gear. You can easily get the ratio if you have both gears. Just divide the larger one by the smaller one.

 

thank you i went to the garage and pulled the rest of the gears found the right one and it turned out to be a hf(88-91 crx) tranny. it doesnt matter though since i already swaped trannies. thanks though.