Posted by Fred Coldwell [174.16.22.179] on Friday, November 22, 2013 at 10:10:39 :
In Reply to: How the verify axle gear ratio??? posted by Chris [198.208.72.254] on Friday, November 22, 2013 at 07:16:03 :
I'll assume these axles are removed from trucks and have open differentials in them. While holding one brake drum stationary, raise the other brake drum and rotate it 720 degrees (two complete circles). While rotating the raised brake drum, count the number of times the pinion yoke revolves; that number is your gear ratio. If the pinon yoke revolves 4.88 times, that is the axle ratio. If it revolves 5.83 times, that is the axle ratio. If it revolves 4.10 times, that number is the axle ratio, etc. etc. etc.
If the axle is still on a truck, raise one wheel off the ground and leave the other wheel on the ground. Rotate the raised wheel 720 degrees and count the number of rotations of the horizontal chalk mark you put on the drive shaft. That number is your axle gear ratio. Hope this helps.
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