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Post by jacksh002 on Jun 19, 2007 20:31:47 GMT -5
anyone know how to figure out their gear ratio in axles by revolution of tire to drive shaft??
i have a 85 parts truckalready lifter and blah blah blah but i don't know if they had it geared to run the 40" ground hawgs it had...
so just trying to figure it out because it would suck to buy gears if they are already there and i didn't know it.
thanks for the help
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Post by live4yotas on Jun 19, 2007 21:29:59 GMT -5
Nah I dont know about that tire to driveshaft thing but take off your rear diff cover and count the teeth on the ring and the teeth on the pinion. To run 40's I hope it had at least 5.29's be good if it had 5.71's.
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Post by jacksh002 on Jun 19, 2007 21:46:47 GMT -5
hopefully, but it was gonna be a mud only truck with whatever worked, so there really isn't any telling, it was a project truck that he didn't have time to do so it was put on the chopping block and i snagged it up
but once i count em what's it mean..? lol
like.. if i count a bunch more or less teeth then a stock ring/pinion would mean what(higher or lower ratio)
thanks
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Post by fourwd1 on Jun 20, 2007 7:15:49 GMT -5
Nah I dont know about that tire to driveshaft thing but take off your rear diff cover and count the teeth on the ring and the teeth on the pinion. Toyotas use a third member setup, there is no diff cover  |
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Post by fourwd1 on Jun 20, 2007 7:22:52 GMT -5
anyone know how to figure out their gear ratio in axles by revolution of tire to drive shaft?? An amazing thing called  could have gotten you this info in seconds: Raise and safely support one wheel (two if you are locked up). It is easiest to do this with the transfer case in neutral, so make sure you are on a flat surface with the wheels blocked from rolling. Turn the wheel so the yoke aligns with a spot on the differential housing you can see from the wheel and mark the yoke. Mark a point on the wheel in relation to somewhere on the body, chalk or a grease pencil will work Turn the wheel two full revolutions and count the revolutions of the yoke. The number of revolutions of the yoke will be the ratio. For example, if you count 3 3/4 revolutions, the ratio is probably 3.73:1. |
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Post by jacksh002 on Jun 20, 2007 15:01:57 GMT -5
well i apologize for searching on TOR for the information, and while i was already logged in i decided to ask a question, but thank you for the reply all the same because it is just as helpful.
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Post by live4yotas on Jun 20, 2007 18:10:33 GMT -5
Im sorry about that I wasn't even thinking about toyota vs. my ford.
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Post by fourwd1 on Jun 20, 2007 21:07:07 GMT -5
well i apologize for searching on TOR for the information, and while i was already logged in i decided to ask a question, but thank you for the reply all the same because it is just as helpful. No worries, actually this should have shown up on a search of this BBS, it came up a few weeks ago. |
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Post by mudwiser316 on Jun 21, 2007 2:59:39 GMT -5
it was may 25th fourwd1. you said to google it then!!!
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Post by jacksh002 on Jun 21, 2007 20:54:03 GMT -5
yea, google is the sh.t. but thanks for the help, i did search for gear ratio; match any, match all search all 9999999 days/hours and got nothing about what i was looking for,(unfortunately i never really get many good search results), so my bad, i also looked under FAQ's so it might be a good thing to add since i guess it was brought up before and yada yada.
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Post by fourwd1 on Jun 25, 2007 9:39:12 GMT -5
... i also looked under FAQ's so it might be a good thing to add since i guess it was brought up before ... That is a good idea. |
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