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Re: gonna find out my rear end ratio....
Quote:
Originally Posted by oldblue1968chevy
30 56
30 being the tire spins
56 being d shaft
i came up with 3.73 is this correct? thanks goin into the weeds with the snakes to calcualte the other rearend...
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I think I understand what you did, it is the same as prostreetc10 said except you only lifted one tire and you turned the driveshaft enough times to make for round numbers. so if you turned the yoke 56 times and the tire turned 30 times then you divide 56 by 30 which equals 1.867 but the ratio is actually twice that because the spider gears cause the tire to rotate twice as fast as when both tires spin, so you have to multiply 1.867 by 2 which equals 3.734, so I'm pretty sure the rear is a 3.73. Hope this makes sense
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68 3/4 ton  (Project)-350 Small Block, .030 over, 10:1 comp, 3998993 heads, C3BX edelbrock intake, comp cams XE268, Holley 670 SA, long tube headers, dual flow 40's, E-fan, Alum rad, currently under the knife getting shortened and bagged  build thread
41 3/4 ton (wife's)-flatbed, fully restored to original
01 Tahoe LT 4WD (my daily driver)-Magnaflow Muffler, Rollin on 22's
02 Ford Mustang Convertable (Wife's Car)-Flowmaster 50, Clear corners, Intake, sittin on 18's
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