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Old 05-16-2017, 07:15 AM
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Help Please! Flex text gone wrong

I need a little advice. The center boot on my rear driveshaft caught and tore on the skid cover.
My set-up
2015 Sahara Unlimited
Tereaflex 2.5 coil spring kit
Rancho 9000x Shocks
Rancho geo-correction brackets
Toyo AT 285/75r18

My questions
Should I cut the boot completely off and order a replacement?

Do I need a new drive shaft? (the shaft was not damaged, Just the boot)

How do I prevent this from happening again?

Is it safe to drive for a week or so till the replacement boot or shaft arrives?

While waiting for replacement boot/shaft can driving it damage any other parts?

Thank you for your advice

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Old 05-16-2017, 07:28 AM   #2
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Pull the boot off. And order a new driveshaft. You can get by a short while without the boot, but once you start hearing clicking, the joint is gone and it is officially done and needs to come off. You should make it a week. You may get some vibrations - again, ok short term but if they get real bad, it's done.

Aftermarket shafts are narrower.
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Old 05-16-2017, 07:46 AM   #3
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Help Please! Flex text gone wrong

You can order a new boot. Not recommended to drive it as it will spit out the grease and ruin the cv then the driveshaft would need to be replaced. You will also need the proper grease and a cv band tool. https://www.quadratec.com/parts/jeep...ve-shaft-parts


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Old 05-16-2017, 07:57 AM   #4
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Wow, that sucks! Do you have bump stop extensions?
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Old 05-16-2017, 08:12 AM
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Wow, that sucks! Do you have bump stop extensions?
Yes. The teraflex ones that came with the lift
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Old 05-16-2017, 08:17 AM   #6
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I'd say aftermarket drive shaft is your best bet then. If you don't want to do that, and you replace the factory boot, you could use a kit to relocate the evap canister, or increase your bump stop extension on the rear axle.
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Old 05-16-2017, 08:27 AM   #7
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That's only the slip boot, order a new one or just make sure to clean it regularly
The slip only sees movement when the axle drops (driveshaft has to lengthen) or raises (has to shorten)
It is not a cv joint boot and you are not on borrowed time and grease won't come out unless you put some on there


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Old 05-16-2017, 08:40 AM   #8
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Use the teraflex video that shows how to move the evap canister over. It's on their website.
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Old 05-16-2017, 09:04 AM   #9
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just replace the boot kit is about $80 or so thru 4wd.com you can pull the boot and it won't spit grease because there is only residual grease nothing to really fling off. you can drive it until you get the new boot. the other option is look on craigslist and buy a newer take off driveshaft from someone who as replaced it and watch the video that jaysport mentioned. I tore mine a couple of years ago in Moab and spent the week wheeling and drove 750 miles home and another week or so until the new boot came in.
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Old 05-16-2017, 09:04 AM
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Thanks for all the help. Looks like I'll order a new boot and relocate the cover. Hopefully, that will do. $25 sounds better than a new drive shaft.
I'm a little confused, is this very common? Now that I know how to fix the problem, What caused this?
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Old 05-16-2017, 09:06 AM   #11
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Quote:
Originally Posted by AndrewOde View Post
Thanks for all the help. Looks like I'll order a new boot and relocate the cover. Hopefully, that will do. $25 sounds better than a new drive shaft.
I'm a little confused, is this very common? Now that I know how to fix the problem, What caused this?
stock jeeps don't flex much so usually is not a problem once they get flexible it allows the axle to shift to one side enough that while flexed they hit the sharp evap skid and vola you have a shredded boot.
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Old 05-16-2017, 09:27 AM   #12
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https://www.youtube.com/watch?v=H38S1LCSjyU

A decent video on replacing the boot. Hope it helps. Seems pretty simple.
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Old 05-16-2017, 09:31 AM   #13
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Quote:
Originally Posted by AndrewOde View Post
Thanks for all the help. Looks like I'll order a new boot and relocate the cover. Hopefully, that will do. $25 sounds better than a new drive shaft.

I'm a little confused, is this very common? Now that I know how to fix the problem, What caused this?


Yes no need for a new driveshaft, perfectly fine driving until the new boot shows
Wild that people were telling you you need to drop it and get a new one lol
Relocating the cover should do it, strange that you did catch it tho. I run the exact lift, 2 door mind you but even my gf's JKU has never caught the boot.... yet lol
The cause is from the upwards motion of the axle, the track bar will swing the axle drivers as it comes up
That being said, which hole are you running in on the bracket on the rear axle?


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Old 05-16-2017, 09:32 AM   #14
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you will be fine with the torn boot for a lot longer than you think. yes - tear the boot all the way off. all the boot is, is a dust cover.

you should look for a new driveshaft. the OEM driveshaft is wide, very wide, and under articulation can contact the transmission pan which likely caused the tear in the first place.

adams makes good driveshafts, tom woods... there are a couple. there are several more, but i have experience with those two.
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Old 05-16-2017, 09:38 AM   #15
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I have the same lift and you only need to purchase a replacement boot. You can move the skid plate like the video below. I'm surprised that this wasn't addressed during the lift install. It's a quick and safe fix. Good luck.
http://www.youtube.com/watch?v=jkfLGjzH7Z4
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Old 05-16-2017, 09:52 AM
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Originally Posted by Stil2low View Post
Yes no need for a new driveshaft, perfectly fine driving until the new boot shows
Wild that people were telling you you need to drop it and get a new one lol
Relocating the cover should do it, strange that you did catch it tho. I run the exact lift, 2 door mind you but even my gf's JKU has never caught the boot.... yet lol
The cause is from the upwards motion of the axle, the track bar will swing the axle drivers as it comes up
That being said, which hole are you running in on the bracket on the rear axle?


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Thanks. It's in the top hole of the bracket. I have noticed that the axle is shifted more to the drivers side. It's been annoying me since I installed the lift.
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Old 05-16-2017, 09:55 AM   #17
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Also, to center the rear axle and front, I used TF Monster in the front and Super Lift in the rear. You can read more on the Super Lift here
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Old 05-16-2017, 10:23 AM   #18
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Originally Posted by AndrewOde View Post
Thanks. It's in the top hole of the bracket. I have noticed that the axle is shifted more to the drivers side. It's been annoying me since I installed the lift.


Ahh that would do it, the top hole is meant for the 3/3.5 kits and the lower hole is for the 2.5 kit
Being in the top hole allowed the axle to come over to the drivers side too much during flex/compression
Drop it to the lower hole and you shouldn't contact the evap skid again


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Old 05-16-2017, 01:21 PM
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Ahh that would do it, the top hole is meant for the 3/3.5 kits and the lower hole is for the 2.5 kit
Being in the top hole allowed the axle to come over to the drivers side too much during flex/compression
Drop it to the lower hole and you shouldn't contact the evap skid again


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I'll try moving it to the bottom hole. Called teraflex and the guy said the top hole is recommended for the 2.5" lift. I'm more confused now than ever. At this point It's not gonna hurt to try.
One thing I have learned about Jeeps. Everything seems to be a gray area. Nothing is black or white. Multiple ways to fix and create problems.
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Old 05-16-2017, 02:02 PM   #20
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Simple measure your axel to see if it's shifted and if it's, depending by how much, you can buy an adjustable TB and fix it, the top hole will be to much, ask me how i know. later on i went a little down i height, and i needed an adjustable TB to correct, i'm in the bottom hole, with a TF adjustable rear TB, and 2.25" lift.

Also, do something with your factory evap skid, or you'll tear the new boot as well, somebody posted a Video of how to do it, or you can buy an aftermarket skid

https://www.wranglerforum.com/f274/ev...ft-136331.html
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Old 05-16-2017, 02:08 PM
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Simple measure your axel to see if it's shifted and if it's, depending by how much, you can buy an adjustable TB and fix it, the top hole will be to much, ask me how i know. later on i went a little down i height, and i needed an adjustable TB to correct, i'm in the bottom hole, with a TF adjustable rear TB, and 2.25" lift.

Also, do something with your factory evap skid, or you'll tear the new boot as well, somebody posted a Video of how to do it, or you can buy an aftermarket skid

https://www.wranglerforum.com/f274/ev...ft-136331.html
Thank you. New boot will be here tomorrow. Ill relocate the skid and move to the lower hole tomorrow afternoon when the boot arrives.

Ill post some pics when finished.
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