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So I swapped my passenger side lbj and was tightening the castle nut to the lower suspension arm to torque. Grease started come out from somewhere. Is this normal? I took it back off and inspected the boot but see no damage. Did the seals on it fail? It's Moog that I got from RockAuto.

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2002 Lexus IS300
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So I swapped my passenger side lbj and was tightening the castle nut to the lower suspension arm to torque. Grease started come out from somewhere. Is this normal? I took it back off and inspected the boot but see no damage. Did the seals on it fail? It's Moog that I got from RockAuto.

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I’d imagine a little came out of the top of the bolt where the stud protrudes? If so, AND you attained 91 ft. Lbs. just wipe it off and call it good.
If you see visible boot damage then you may need to get a replacement unfortunately.
 

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It looks like that's where it came from. When I took it off to look at the boot I couldn't really tell exactly where it came from but it was on the underside where the bolt goes through.

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The ball joints I've been purchasing come with a Zerk grease fitting that can be installed. When you use this fitting to change/re-grease the ball-joint, the old grease has to come out somewhere; this is by design. Usually there is a small orifice in the side of the boot; I wouldn't be surprised if some are designed so the grease escapes at the top seal.
 

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Yeah the lower ball joints are designed to leak grease to alleviate pressure. My Moog ball joints leaked a decent amount of grease initially. If you're worried I'd just check it occasionally.
 

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What you should be concerned about is if nothing came out.... if there was no grease in there. Many are filled from factory. Just make sure they are not dry
 
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