Silverado IFS Axle Seal Leak - Hot Rod Forum : Hotrodders Bulletin Board
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Old 04-24-2008, 08:16 PM
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Silverado IFS Axle Seal Leak

My '00 Silverado 3/4 ton has a leaking axle seal on the passenger side. I was wondering if anybody has changed out one of these seals. What did you take apart to get to the seal and how long did it take?

I've never done it but it doesn't appear that the passenger side axle has enough room to pull out far enough to replace the seal with the rest of the axle/differential assembly in the truck.

So if one of you has changed one how did you do it? Did you drop the front axle to get to the seal? Or did you disassemble the spindle and control arms to slide the axle out that way?

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Old 04-24-2008, 09:13 PM
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Not sure how to do it but I work in a Chevy dealership parts dept and we sell alot of the seals, I mean alot.
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Old 04-24-2008, 09:46 PM
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You got a leaky spark tube...
 
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Hmm, if I drop the axle from the truck I may replace both seals then.

Any other high usage parts for those trucks that I should know about?
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Old 04-25-2008, 05:53 AM
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nothing come to mind, just the seals.
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Old 04-26-2008, 04:13 PM
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You got a leaky spark tube...
 
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Nobody knows anything?
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Old 04-27-2008, 06:27 PM
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silverado ifs axle seal

I replaced one of those last week.I unbolted the cv axle from the flange,and removed the nut at the hub,you can then remove the cv shaft from the underside without disturbing the suspension at all.sometimes you have to remove the sway bar link to give room to slip the shaft out.unbolt the extension housing from the frame(2 21MM nuts),then remove the 5 bolts holding the housing to the differential housing.the shaft and housing will slide right out,enabling you to change the seal,and reverse the procedure to reassemble.
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Old 04-28-2008, 07:57 PM
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You got a leaky spark tube...
 
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Which side did you change? The passenger side looked a little tight trying to get it out with everything place so I decided to ask before I went in too far. Sounds like it should be able to be done in truck so I'll probably give it a shot that way then.
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Old 04-29-2008, 06:53 PM
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silverado ifs axle seal

I just got back online,sorry for the late response. I replaced the passenger side seal. The drivers side doesnt usually go bad for some reason. The drivers side shaft can be a real bear to remove,remove the cv shaft,and the shop manual says to use a slide hammer puller to remove the flange shaft from the differential housing.Our GM parts guy said he knew of several"mechanics" who had broken the aluminum diff.housing trying to pry the shaft out.luckily I didn't have to do the drivers side.
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Old 04-29-2008, 07:38 PM
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You got a leaky spark tube...
 
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I've got the factory service manual for mine (4 volumes, about 3" thick each) and all it shows is an iso. drawing of the axle out in the open. Being able to replace that seal without dropping the axle or disassembling the front suspension will make it so much easier.

Thanks for the insight.
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Old 04-30-2008, 08:16 AM
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The leak is common and there is an improved bearing and seal available from GM. At most dealers you have to ask for the improved pieces as the computer will only spit out the OE numbers for the VIN entered.
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