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95.5-2004 Tacomas & 96-2002 4Runners 4th gen pickups and 3rd gen 4Runners

Diff Drop and Split CV Boots

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Old 04-05-2006, 05:05 AM
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Originally Posted by xcntrk75
Just wanted to chime in here as I’ve dealt with a number of high-whp CV axle issues in my past…

You guys do realize that once the boots are torn and the grease escapes the joint is no longer lubricated and eminently prone to failure. Simply repacking, rebooting, and rebanding doesn’t help the joint if it’s already damaged from the lack of lubrication. Once those boots tear, the centrifugal force slings the grease out pretty rapidly so there’s only a limited amount of time to catch the issue and repair the boot before damaging the joint. And the thing is, you usually don’t know the axle is damaged until you begin to hear the clunking and binding from the joint which means the damage is already done and the entire axle must be replaced/rebuilt.

Routine inspection of your axle boots is the only way to verify their condition which could lead to failure. Once you hear one clunking it’s too late.
Yes, I would assume that it is obvious that inspection of the CV joint itself would be performed before any boot repair was done. If there was bearing play (clunk sound), rust in the joint, blueing of the bearing area metal, etc.....then the person should opt for a new axle. I have redone many ripped boots and had the axles go on to perform fine later but there have been a few which don't. If you catch it relatively early, there is nothing wrong with a CV boot fix.

Last edited by MTL_4runner; 04-05-2006 at 08:56 AM.
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