Torn ATV CV Boot (Fix it like a Pro!)


Corn stubble, rocks, wear and tear whatever the cause, a torn CV boot if neglected gets more expensive. Always better to repair a torn boot asap a worn half shaft is dangerous.

To repair a torn ATV CV boot, remove the following components in these 8 steps:

1 Remove drive shaft
2 Remove old boot clamps
3 Remove outer CV joint and boot
4 Clean and inspect
5 Fit new clamps and boot
6 Refit CV joint
7 Pack with grease
8 Tighten boot clamps

In this post you’ll learn how to replace an ATV CV boot, you’ll learn about the tools you’ll need and technique required to nail the repair first time.

Removing ATV Half Shaft

Removing the drive shaft is necessary to fit a CV boot. Removing isn’t that difficult and you won’t need any special tools. I wrote a whole post on the subject which you might find helpful, check out “ATV driveshaft removal”.

The procedure requires the removal of the following components:

1 Wheel
2 Drive nut
3 Brake caliper
4 Steering arm
5 Upper ball-joint
6 Lower ball-joint

Remove CV Boot Clamps

CV boots only last so long, so unless your boots are pretty new, I’d go ahead and replace both inner and outer. Boots, clamps and grease aren’t expensive but your time is valuable, you don’t want to revisit this corner of your ATV again.

There are a couple of different type clamps employed, the reusable type and the one time only fit. Either way you’ll have a new set with your new boots.

You’ll need a crimp tool to fit the one time use mushroomed type clamps.

Remove ATV CV Joint

CV joints are fixed to the shaft with either a snap ring or hidden c clip thingy. All outer joints will be removable but not all inner joints. Either-way, both inner and outer boots can be replaced by removing just the outer CV joint.

To remove the outer joint, set the drive in a vice griped by the shaft. Pull the old boot down the shaft and clean the old grease away from the joint.

Examine the outer CV joint where the CV meets the shaft, if it’s held in place by a snap ring, you’ll see it. A suitable size snap ring pliers will make removing it easy.

If you can’t see any evidence of a snap ring at the joint, then it’s fastened using a c clip, which is the more common type. To remove the CV fastened with a c clip, set the drive in the vice vertically with the outer CV joint facing downward.

Using a plastic hammer or a drift, sharply tap the inner CV splines ring, where it meets the shaft.

The CV joint will slide from the shaft and drop to the ground, so place some old packaging on the ground to break the fall.

With the CV joint removed, your free to slide the old boot off. If the inner boot needs to be replaced, go ahead and slide it off now too.

Clean & Inspect CV Joint

Clean as much of the old grease off as possible, a torn boot attracts grit and debris that will damage the CV joint. If your CV joint is noisy or has free-play you’ll need to replace the CV joint or the whole half shaft.

Position CV Boots & Clamps

With the old grease cleaned from the drive and joints, slid on the new boot(s) and clamps. We’ll need to keep the boots and joints mating surface grease free.

Re-fit CV Joint

Refitting the CV joint is easy, just be sure you have all the boots and clamps assembled in the correct order.

Pack the center of the CV joint with the CV boot grease supplied. Position the drive in the vice with the outer CV joint side facing upwards. Position the CV joint square over the shaft end and strike the threaded end with a plastic hammer (metal hammer will damage threads).

Pack additional grease into boot(s). Clean the boot and joint mating surface, grease on these surfaces may cause the boots to slip off. Position the boots in place.

Fit & Tighten Clamps

Slide clamps onto boot collar and align centrally. Using your channel locks or crimping tool tighten boot clamps. When tight, it won’t be possible to slide the clamp left or right.

That’s it, refit the half shaft to the bike, job done!

John Cunningham

John Cunningham is an certified mechanic and writer on ATVFixed.com. I’ve been a mechanic for over twenty years, I use my knowledge and experience to write articles that help fellow gear-heads with all aspects of ATV ownership, from maintenance, repair to troubleshooting.

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