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'87 Dana 30 C.A.D. delete


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I read a bunch of posts on this topic before I decided to go for it but here is a problem that I have not seen talked about in any post I have read. The problem is the hub bearing seal. The axle shafts I got came out of a '97 TJ with the bigger 760 u joints. They still had the hubs on them when I bought them. The TJ hubs use a sealed bearing with no need for a hub housing seal. The hubs on my '87 however don't have sealed bearing and require the flange on the axle shaft to seal up the hub. 1551461826_IMG_20230708_1729155212.jpg.5e7c02f257ffacbc0e9e85d733453b74.jpgThe flanges on the TJ axles are to small to seal up the hubs. 1467971963_IMG_20230708_2037285732.jpg.604b968ba223d7ffbce32c7c82356298.jpg

881814911_IMG_20230708_2037124292.jpg.e10454609bdc875a235facb83795e921.jpgMy solution was to pull the flanges off the old axles and press them on top of the TJ flanges. 1935467714_IMG_20230708_2038316882.jpg.d8930425e4634622e25c2aae77fa910d.jpgNow I have late model axle shafts in early hubs. I did take a measurement of the id of the seal and it was about 2.890 should be more than enough to make a good seal(Still putting everything back together).

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It looks like the hub style was changed in 1990 to use sealed bearings and not a seal between the hub and the axle shaft. You must have the later style of hubs on your axle. Adding a sealant to the inboard side of the splines should keep water away from the splines making it easier to take the hubs off later. I had a hard time getting the hubs to separate from the TJ shafts because there was a bit of rust on the splines because they weren't sealed from the elements. I actually like the older style hubs better because of the hub to axle seal. It keeps the water off of the splines and the bearings.

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