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Old August 9th, 2010, 08:23 AM   #1
Kodiak450r
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Default d30/d35 ratio id

93 cherokee 4.0/ AW4 where would i find the axle ratio information? i didn't see any tags on the axles themselves so idk if they are MIA or not.
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Old August 9th, 2010, 08:27 AM   #2
BigBlockBlazer
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Take off a diff cover and look at the ring gear, it is usually stamped on the outside.
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Old August 9th, 2010, 09:43 AM   #3
osteologation
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most likely 3.55 or 3.73 with towing package on a 4.0/auto

mine with 3.55 pulls 1900rpm at 60, thats with the stock 225/75 -15


assuming your going 60mph


engine rpm / .75 (o/d on 23spline aw4) / (63360 / (tire od * pie)) = gear ratio

Last edited by osteologation; August 9th, 2010 at 09:53 AM.
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Old August 9th, 2010, 07:38 PM   #4
wilinsonlevi
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call the dealership and give them your vin #
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Old August 10th, 2010, 11:05 AM   #5
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Dana only has one listing on their site for an XJ D35 in 1993, so it should be 3.55 if you are correct in what they came from. The only difference is whether it was a LSD.

Get the BOM off either axle tube and stick it in here to be sure:

http://www2.dana.com/expertforms/deabill.aspx
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Old August 10th, 2010, 04:55 PM   #6
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ok. didn't wanna pull the cover just for an id. has fresh fluid front and rear no sense draining it. i'll go with the 3.55 that sounds good for 31's. it doesn't run still so idk the rpm at 60. going to be strictly cheap beater trail rig so idc if it goes faster then 40.
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