DarrellBuddy321 Posted February 19, 2006 Share Posted February 19, 2006 how do you determine what your diff ratio is? Im not sure, i have a 87 300zx OPEN r200. What are the possibilities of what it might be? Quote Link to comment Share on other sites More sharing options...
Mayolives Posted February 19, 2006 Share Posted February 19, 2006 http://forums.hybridz.org/showthread.php?t=103512 Quote Link to comment Share on other sites More sharing options...
DarrellBuddy321 Posted February 19, 2006 Author Share Posted February 19, 2006 yea but is there a way to distinguish between the ratios? Quote Link to comment Share on other sites More sharing options...
Ed260Z Posted February 19, 2006 Share Posted February 19, 2006 http://www.z31.com/differential.shtml Quote Link to comment Share on other sites More sharing options...
Z-Gad Posted February 19, 2006 Share Posted February 19, 2006 Easiest way is to pull off the rear cover and read the numbers off of the ring gear. My 3.36 gearset has the numbers 37:11 stamped into it. You divide the numbers 37/11 and it comes out to 3.363636... Quote Link to comment Share on other sites More sharing options...
DaleMX Posted February 19, 2006 Share Posted February 19, 2006 Jack up the back of the car, mark the wheel (and the driveshaft), count the driveshaft turns it takes to make a full go-around of the wheel. Quote Link to comment Share on other sites More sharing options...
proxlamus© Posted February 20, 2006 Share Posted February 20, 2006 Dale MX ... keep in mind this will be different if you have a 14" wheel, or 15" or 16" wheel etc.. do you mean a mark on the inside of the wheel? or the outside of the wheel? Outside of the tire? too many variables Quote Link to comment Share on other sites More sharing options...
CruxGNZ Posted February 20, 2006 Share Posted February 20, 2006 Actually, wheel diameter has nothing to do with Dale's method. It's not perfect, because of the room for error, but it gets you in the right ballpark for what ratio you might have. Quote Link to comment Share on other sites More sharing options...
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