Question about 1983 Jeep CJ7

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Rear wheel bearing/axle problem

I have an 83 CJ7 and blew out the right rear wheel bearings. I can't find anything to see if what I'm seeing on what I think is the inside race of the inner bearing is bent or if it is the axle shaft housing flange bent. The bearings are definately shot, I removed small metal fragments along with what was left of the bearings. I can't find any id marks to determine if they are AMC 20 or DANA 44. Also, if the shaft is scored, I believe the entire shaft needs to be replaced. Is it worth replacing the bearings after I get the rest of the bearing out or should I go with another axle? Also, how do I find out what axle I really have?

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  • Jeep Master
  • 6,982 Answers

1. There should be a metal tag on the diff cover, held on by one of the cover bolts. This will help you ID the unit. If it's gone then someone will have to look at it that knows these rears. If the axle surface that is scored rides on the bearing surfaces, is scored then it needs to be replaced. 2. the easiest way to know if you got all parts of the old bearing out is to look at a new bearing. 3. I can't remember the manufacturer (maybe sosmetal?), but there used to be a bearing setup that changes the position of the bearing & seal on the axle so it rides on an undamaged part, so you can still use the axle. Check with any local old style parts house (not one of the new fast food type places) you may get some help there.
Also... if the bearing failure was extensive, make sure you remove diff cover and clean out all debris from the gear set housing... any junk left behind can destroy pinion and side bearings!!!

Posted on Dec 28, 2008

  • Richard Scordino Dec 28, 2008

    PS...Kit I mentioned is made by Timken and is likely still available!!

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sra~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: The rear brake anti-lock sensor must be removed before the axle shafts are removed. The rear brake anti-lock sensor is bolted on the rear disc brake caliper anchor plate.
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sra~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Care must be taken not to let axle shaft splines damage oil seal or bearing assembly.
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---------------------------------------------------------
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  1. sxn~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Turning the differential case (4204) or an axle shaft (4234) with the differential pinion shaft (4211) removed will cause the differential pinion gears (4215) to fall out of the assembly and damage the components.
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  3. sxn~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Do not damage the wheel bearing oil seal (1177).
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-----------------------------------------------------------------------------------------------------------------
Seal Removal
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  1. sxn~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Never remove the wheel bearing oil seal (1177) by itself. Always remove the rear wheel bearing (1225) and the inner wheel bearing oil seal at the same time.
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6c7eb46.gif Installation
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