AMC20 leaking gear oil
Chipw
Jeeper
- Posts
- 71
- Thanks
- 0
- Location
- North Georgia
- Vehicle(s)
- 1980 CJ7. Iron Duke 4cyl., SR4, Dana300, Dana 30 with aussie locker, AMC 20 with detroit locker and 4.88 gearing, welded and trussed axle housing, one piece axles. 33x12.5 tires
Hello,
New CJ owner here with a couple questions. My rear differential is leaking oil. Picture attached shows amount of oil after two days of sitting. Im going to remove the cover to drain the oil and to also see what type of locker i have in there. My concern is resealing the differential. Im assuming a gasket is needed, any suggestions on which one?
also, would it be worth adding a stronger differential cover while i have the stock one off? The previous owner thought there is an aussie locker in there and it spins both wheels same direction when the rear is jacked up.
one more question. are those welded on supports above the axle housing stock or added later? thanks

New CJ owner here with a couple questions. My rear differential is leaking oil. Picture attached shows amount of oil after two days of sitting. Im going to remove the cover to drain the oil and to also see what type of locker i have in there. My concern is resealing the differential. Im assuming a gasket is needed, any suggestions on which one?
also, would it be worth adding a stronger differential cover while i have the stock one off? The previous owner thought there is an aussie locker in there and it spins both wheels same direction when the rear is jacked up.
one more question. are those welded on supports above the axle housing stock or added later? thanks
