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Old 01-29-2011, 09:23 AM   #1
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Default Chrysler 8.25 factory gear ratios?

Hey everyone, well after listening to the rear end growling for the last 20k miles it's time to swap it out. The ID tag is missing off the axle, which is a Chrysler 8.25. I cant find information as to the factory gear ratio of the Chrysler rear end. Were there more than one available set of gears offered in the Chrysler 8.25 rear end? It's a 97 Cherokee, 4.0, AW4, 4WD, basic Cherokee (non sport or upcountry). Any help on this would be greatly appreciated. Thank you!

P.S. can i call jeep with the vin# and get the gear ratio that way?
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Old 01-29-2011, 09:27 AM   #2
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Auto's have 3.53's stock, towing package has 3.73's
they also made the 8.25 in a limited slip
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Old 01-29-2011, 09:31 AM   #3
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It's an open diff (when spinning only the RR tire spins) how can i determine if it has the tow package (previous owner kept the class 3 hitch)
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Old 01-29-2011, 09:33 AM   #4
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contact chrysler with your VIN and request a build sheet for your XJ
that'll tell you everything about YOUR jeep
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1998 cherokee - rebuilt 4.0 w/ all the goodies, RADesigns Rock shifter and AW4 shift rail/TC lock, RE 3.5" superflex kit, cragar soft 8's, Maxxis BigHorn's 32x11.5R15, locked HP D30, Limited Slip 8.25", 4.56's...

Check out My Build Thread: http://www.cherokeeforum.com/f46/hea...project-38788/
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Old 01-29-2011, 09:33 AM   #5
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Quote:
Originally Posted by tannerp89 View Post
Auto's have 3.53's stock, towing package has 3.73's
they also made the 8.25 in a limited slip
I'm pretty sure the stock gearing for the automatics is 3.55
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Old 01-29-2011, 09:35 AM   #6
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Quote:
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I'm pretty sure the stock gearing for the automatics is 3.55
haha your right, my bad, it's early
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Old 01-30-2011, 05:00 AM   #7
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If you can't find the stamping on the ring gear, divide the number of teeth on the ring gear by the number on the pinion
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Old 01-30-2011, 07:04 AM   #8
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Quote:
Originally Posted by tannerp89 View Post
Auto's have 3.53's stock, towing package has 3.73's
they also made the 8.25 in a limited slip
My '99 4.0 auto has the towing package and it's got 3:55's.
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Old 01-30-2011, 07:04 AM
 
 
 
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