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Old 11-30-2018, 12:13 AM   #16
alifsyz
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Join Date: Jun 2017
Location: Jakarta, Indonesia
Posts: 19
Quote:
Originally Posted by AndrewBird View Post
The movement of the speedo and tach changes with different gear ratios, so that is not an indicator.

Download this calculator I made and insert all the numbers for your trans, tires, etc.

https://drive.google.com/file/d/1gLY...ew?usp=sharing

Then figure out what MPH you are going at X rpm and see if it matches. Do it for a few different speeds to be more accurate. Shouldn't be hard to figure out what diff it actually is.

I have tested the diff by spinning the wheels in gear and confirmed its is indeed a 3.46 ratio diff, as stated on the diff tag.
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