What gear ratio do I have?
05-10-2011, 04:18 AM
#1
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Year: 2000
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What gear ratio do I have?
I have a european model xj 2000 sport with the 2.5 td rhd(im in Ireland) and want to know what gears i have...is there some sort of stamp on the diffs or some sort of identifacation mark that will let my know?
D30/d35 is what I have..
Thanks in advance
Dwighet
D30/d35 is what I have..
Thanks in advance
Dwighet
05-10-2011, 04:27 AM
#2
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i'm not sure what came in those stock. maybe 4.10's.
there should be a tag on the front and possibly rear diff covers held by two of the cover bolts that should tell you what gears are in there.
if you're missing those, you could always pull the cover and check the end of the ring gear for the series of numbers. there is a set of numbers that tell you the ring gear teeth and the pinion gear teeth. you would divide those numbers and that will tell you the ratio.
there should be a tag on the front and possibly rear diff covers held by two of the cover bolts that should tell you what gears are in there.
if you're missing those, you could always pull the cover and check the end of the ring gear for the series of numbers. there is a set of numbers that tell you the ring gear teeth and the pinion gear teeth. you would divide those numbers and that will tell you the ratio.
05-10-2011, 04:30 AM
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i'm not sure what came in those stock. maybe 4.10's.
there should be a tag on the front and possibly rear diff covers held by two of the cover bolts that should tell you what gears are in there.
if you're missing those, you could always pull the cover and check the end of the ring gear for the series of numbers. there is a set of numbers that tell you the ring gear teeth and the pinion gear teeth. you would divide those numbers and that will tell you the ratio.
there should be a tag on the front and possibly rear diff covers held by two of the cover bolts that should tell you what gears are in there.
if you're missing those, you could always pull the cover and check the end of the ring gear for the series of numbers. there is a set of numbers that tell you the ring gear teeth and the pinion gear teeth. you would divide those numbers and that will tell you the ratio.
Cheers
05-10-2011, 09:46 AM
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You can also scotch the tires and lift one of the rears, put it in neutral, spin the tire one complete turn and count how many times the yoke spins. 3 1/2 would be 3.55, little over 4 would be 4.10 and so on.
05-10-2011, 09:51 AM
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05-10-2011, 11:13 AM
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If you take the diff cover off you can look on the ring gear and there will be a list of numbers take the last 4 numbers and divide the first 2 by the second 2 and will give you your ratio. A 3.73 ratio will read 41 11 as the last 2 sets of numbers (41\11=3.727272) hope this helps.
Last edited by FUnkman1025; 05-10-2011 at 11:50 AM.
05-10-2011, 11:48 AM
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Year: 2000
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If you take the diff cover off you can look on the ring gear and there will be a list of numbers take the last 4 numbers and divide the first 2 by the second 2 and will give you your ratio. A 3.73 ratio will read 41 11 as the last 2 numbers (41\11=3.727272) hope this helps.
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05-10-2011, 12:06 PM
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05-14-2011, 10:15 PM
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If you only lift ONE rear tire and have an open diff you have to double (I believe) what the pinion turns because of the effect of the spider gears. If you have a limited slip you'll need to lift both tires, then the count is whatever the pinion turns.
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