factory differential
Thread Starter
Junior Member
Joined: Mar 2010
Posts: 51
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From: waterford, ohio
Year: 1996
Model: Cherokee
Engine: 4.0
factory differential
Does any body know what differentals they put in the factory xj's? And if so would anybody know what the RPO code or codes are for them?
Old Skewl CF like a Sir
Joined: Feb 2008
Posts: 4,355
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From: Fort Myers, FL
Year: 1996
Model: Cherokee
Engine: 4.0L High Output OBDII
Xjs' didn't come with differentials. They have what are called CV axles in the rear, or circular velocity axles. You need a plug & play encapulator to correctly ID tag your specific rear axle.
Senior Member
Joined: Dec 2008
Posts: 564
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From: Aldergrove,BC,Canada
Year: 1989
Model: Wagoneer
Engine: 4.0L I6
LMAO
but if your actually serious xjs came with
Dana30 for front, first gens had high pinion second gens had low pinion...cant remember specific years
rear ya had 3 options over the years
Dana35=crap
Dana44=good
Chrysler 8.25=in between 35/44
not sure what ya need the codes for other than gear ratio
but if ya want pics for identification use google....or the forums amazing search feature as this is one of those topics that been beaten to death a million times over and is more than likely stickied
but if your actually serious xjs came with
Dana30 for front, first gens had high pinion second gens had low pinion...cant remember specific years
rear ya had 3 options over the years
Dana35=crap
Dana44=good
Chrysler 8.25=in between 35/44
not sure what ya need the codes for other than gear ratio
but if ya want pics for identification use google....or the forums amazing search feature as this is one of those topics that been beaten to death a million times over and is more than likely stickied
CF Veteran
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From: CT.
Year: 88
Model: Comanche (MJ)
Engine: 4.0 HO
CF Veteran
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From: Conroe, Texas
Year: 1997
Model: Cherokee
Engine: I6
CF Veteran
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From: Kalamazoo, MI
Year: 2000
Model: Cherokee
Engine: 4.0L with throttle body spacer and cold air intake, bored throttle body, #784 injector upgrade
x2 seriously.... Im confused......
d30 front and the 98+ have low pinion
d35
d44
Chry 8.25 were rear axles
As was stated previously.
d30 front and the 98+ have low pinion
d35
d44
Chry 8.25 were rear axles
As was stated previously.
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Senior Member
Joined: Dec 2008
Posts: 564
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From: Aldergrove,BC,Canada
Year: 1989
Model: Wagoneer
Engine: 4.0L I6
Member
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From: Fort Worth, Texas
Year: 1998
Model: Cherokee
Engine: 242/4.0 I6
From wikipedia - http://en.wikipedia.org/wiki/Jeep_Cherokee_(XJ)#Axles
Axles
The Jeep XJ utilizes front and rear solid (live) axles as opposed to independent front and/or rear axles. This configuration allows the XJ to have superior off-road capability and performance at the expense of some on-road comfort and drivability. Mid-1985 and later two wheel drive models used the same basic suspension with a single tube connecting axle ends with no differential.
Front Axle
Jeep XJs came in several standard gearing ratios:
The Jeep XJ utilizes front and rear solid (live) axles as opposed to independent front and/or rear axles. This configuration allows the XJ to have superior off-road capability and performance at the expense of some on-road comfort and drivability. Mid-1985 and later two wheel drive models used the same basic suspension with a single tube connecting axle ends with no differential.
Front Axle
- 1984 – 1996 : Dana 30, High Pinion, Reverse Cut, 27-spline axleshafts (1989 – 1995 : with ABS used 5-297x universal joints, non-ABS had 5-260x universal joints. Note: Certain XJ models were produced with constant-velocity joints instead of universal joints.)
- 1996 – 1999 : Dana 30, High Pinion, Reverse Cut, 297x/760 universal joint, 27-spline axleshafts.
- 2000 – 2001 : Dana 30, Low Pinion, Standard Cut, 297x/760 universal joint, 27-spline axleshafts.
- 1985 – 2001 : Straight non-driven front axle for two wheel drive only.
- 1984 – 1989 : Dana 35, non c-clip, with anti-lock braking system (ABS) or non-ABS.
- 1990 – 1996 : Dana 35, c-clip, ABS or non-ABS.
- 1997 – 2001 : Dana 35, c-clip, ABS.
- 1991 – 1996 : Chrysler 8.25", c-clip, non-ABS, 27-spline axleshafts.
- Late-1996 – 2001 : Chrysler 8.25", c-clip, non-ABS, 29-spline axleshafts.
- 1987 – 1990 : Dana 44, non-abs, 30-spline axleshafts.
Jeep XJs came in several standard gearing ratios:
- 3.07:1, manual transmission, I6 engine.
- 3.54:1, automatic transmission, I6 engine with Dana 44 rear differential.
- 3.54:1, manual transmission, I4 diesel engine with Dana 35 rear differential.
- 3.55:1, automatic transmission, I6, V6 engines; manual transmission, I4 engine.
- 3.73:1, automatic transmission, I6, Tow Package, UpCountry Package.
- 4.10:1, manual transmission, V6; automatic transmission, I4 engine.
- 4.56:1, automatic transmission, I4, offroad or tow package.
CF Veteran
Joined: Nov 2009
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From: Conroe, Texas
Year: 1997
Model: Cherokee
Engine: I6
for those who clearly didnt catch on Bustedknuckle is ****in with the guy
Former Sponsor
Joined: Feb 2010
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From: Hesperia
Year: 89
Model: Cherokee
Engine: 4.0
if your after a gear ratio jack it up and spin the driveshaft and count the turns of the drive shaft to one turn of the tire, or pop the diff cover and divide the nubers on the ring gear 
Old Skewl CF like a Sir
Joined: Feb 2008
Posts: 4,355
Likes: 3
From: Fort Myers, FL
Year: 1996
Model: Cherokee
Engine: 4.0L High Output OBDII
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