Dana 30 Carrier Question
I know the gear break for a Dana 30 is 3.73. My question is are the carrier's interchangeable across years.
I have a 75 CJ5 Dana 30 with 3.73's. Could I use that carrier in a 97 XJ with a Dana 30 when I regear?
I've never heard of a different Dana 30 carrier type so I would say yes. I know a late model standard Dana 44 carrier works in an early 70's CJ5 Dana 44 rear. The vacuum disconnect D30 axles have a little c-clip on the end of the inner passenger side shaft that sits in one of the side gears. That might be a feature of D30s that is limited to the vacuum disconnect versions but I can't think of any other specialization on a Dana 30.
I do not think the carriers are interchangeable, but I have no proof by experience.
CJ-5 D30 Compatible with Models:
Bronco: 1966 - 1971 (Front) CJ5: 1971 - 1983 (Front)
CJ6: 1971 - 1975 (Front) CJ7: 1976 - 1986 (Front)
CJ8: 1981 - 1986 (Front) Commando: 1972 - 1973 (Front)
Eagle: 1979 - 1987 (Front) Scout 800: 1967 - 1971 (Front)
Scout II: 1971 - 1974 (Front) Wagoneer: 1971 - 1973 (Front)
XJ D30 Compatible with Models:
Comanche: 1986 - 1992 (Front) Grand Wagoneer: 1984 - 1991 (Front)
Grand Wagoneer: 1993 - 1993 (Front) XJ Cherokee: 1984 - 2001 (Front)
XJ Sport: 1984 - 1998 (Front) YJ Wrangler: 1987 - 1995 (Front)
That looks like a list from Randy's Ring and Pinion. Lots of times you will see a carrier with limited year application like that and the only difference might be a pinion seal. If you really want to know you should call Randy's and talk to a tech there.
According to Randy's Ring and Pinion posi traction pages:
The CJ5 Dana 30 uses this Series 4 Eaton E-locker EAT19818
The XJ high pinion dana 30 uses this Series 4 Eaton E-locker EAT19818
So both housings use the identical carrier part number. That still leaves you with carrier bearings to check for your housings but I think you can be sure that the same carrier will fit both of those axles.
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