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Unread 06-29-2011, 07:28 PM   #1
srode
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CV Joint replacement

Doing some brake work on our 99 Jeep Grand getting it ready to sell - found a CV joint boot torn PS - anyone replace one of these? How hard, how long, any special tools I need. May just take it somewhere but will do it myself if it's not too involved.

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Unread 06-29-2011, 07:36 PM   #2
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Your local parts store will have everything you need its not very hard.
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Unread 06-29-2011, 07:53 PM   #3
srode
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Do I need to pull the hub and axle or are you talking about a split boot and gluing?
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Unread 06-29-2011, 08:26 PM   #4
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you will have to pull it all apart
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Unread 06-29-2011, 09:14 PM   #5
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Quote:
Originally Posted by biggoofy View Post
you will have to pull it all apart
yep. the hardest part will be loosening the axle nut. grab your cheater bar
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Unread 06-29-2011, 09:17 PM   #6
-HH-Racer
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I just replaced the boot on mine, and cleaned out the joints, umm yeah use the cheater bar, easiest way. And make sure you have a "banding tool". Not having that tool really screwed me over
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Unread 06-29-2011, 09:20 PM   #7
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U can see it on you tube under zj axel or ch axel ..good luck gona do mine soon..
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Unread 06-30-2011, 05:00 AM   #8
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Very good write up on removing the front shafts.

http://www.jeepforum.com/forum/f310/...w-pics-377208/
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Unread 06-30-2011, 04:55 PM   #9
srode
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Thanks guys, I bought the whole shaft and coupler (rebuilt) for $59 already assembled - It's about 3 feet long most it being the shaft going into the axel housing from the coupler, does that sound right? I was expecting a shorter shaft to mate with another shaft in the housing for some reason - this is a 99 with the Quadra Drive progressive coupler in the front.

Never mind, I read the link on installation - it looks like the shaft in that set of instructions so I guess its right. Only bummer is I have the calipers and rotors off alreay for the brake work so I have to reassemble probably to brake the axle nut loose - no biggy - looks like a simple job.

fortunately for me (in a wierd way) I just replaced the hub and bearing on my 3/4 GMC truck, and have all the tools to do the job already including torque wrench that goes over 175, 36mm socket, and a LOOOONNNNGGG Breaker bar. There were bolts on it I had to torque to 220 ftlbs.
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Unread 06-30-2011, 06:54 PM   #10
xJoshxx
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does not have a progressive coupler. you have limited slip differentials with the quadra drive. you need to make sure they gave you quadra drive shafts they are shorter than the select-trac axles.

BE sure you have 12 point 13mm socket.
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Unread 06-30-2011, 07:56 PM   #11
srode
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Quadra Drive has the gearator pump that engages more as the difference between the speed of the tires increases. That's not a limited slip is it? I thought that was a progressive coupler (jeep calls it a varilock differential)? My understanding is limited slip engages more as the the temperature of the gear oil increases - caused by friction of the clutches against the spider gears caused by speed difference? Am I wrong? Selectrac is completely open differentials with no clutches I thought. Quadra Drive II has an Elocker with clutches instead of the progressive coupler I thought, they do call it a limited slip I believe with an elocker ?

If I'm wrong, I got the wrong shaft. let me know what you think - is a progressive coupler not a varilock differential?
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91 Cherokee - sold at 188,000 miles, still runing great at 250k last report
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Unread 06-30-2011, 08:24 PM   #12
narnwv
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you're combining definitions.

progressive coupler= the clutch pack assembly in the transfer case

vari-lock= the clutch pack limited slip mechanism in the differential
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Unread 06-30-2011, 08:28 PM   #13
srode
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This is where I read the terms - here they mention progressive diff with the term Varilok for the Quadra Drive system.

http://www.wjjeeps.com/tcases.htm

Admittedly I am likely confused.
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Unread 06-30-2011, 08:33 PM   #14
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you're seeing "Center Differential" That's the Hi range (all time) of the transfer case.

This doesn't even apply to the OT....


x2 on having teh 12pt 13mm socket. <--do NOT use a cheap socket, or you'll quickly round off those 12 point bolt heads.
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Unread 06-30-2011, 08:42 PM   #15
srode
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I put PB Blaster on the 13mm bolts last night - broke one loose with a wrench and wrench cheater (adding a 9/16 wrench coupled to it) Have craftsman sockets so not the best - hopefully I can get them off ok - I think all my snap on metrics are 6 point sockets.

this is the line in section 4 at the top of the page I was looking at " Vari-Lok front and rear progressive axles"
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1999 Jeep Grand Cherokee 4x4 Quadra Drive 4.7 L 163,000 miles(sold)
2004 GMC SLT Crew Cab 4x4 Duramax Diesel
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1969 Camaro Hard top
91 Cherokee - sold at 188,000 miles, still runing great at 250k last report
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