Are split CV boots any good?

Split CV boots are a temporary fix, but they don’t last

Split CV boots, also known as quick-boot kits, are designed as an alternative solution to repairing damaged CV (constant velocity) joint boots without having to remove the entire axle shaft. Traditional CV boots are sealed flexible covers that protect the CV joints from debris, dirt, and moisture, maintaining the joint’s lubrication and overall performance. Split CV boots, on the other hand, have a pre-cut seam that allows them to be installed without completely disassembling the axle. They’re a way to save money on the repair. But do split CV boots last? No.

Why split CV boots don’t last long

They’re a temporary fix. They’re designed to provide a quick DIY solution to prevent further damage while buying time to do a more permanent repair by installing a non-split boot or a rebuilt axle shaft.

They don’t last long because they have a seam. The split seam is the weak spot, making it susceptible to leaking, splitting open and dumping all the grease. The reduced sealing ability can lead to increased wear on the CV joint and potential contamination of the lubricating grease inside.

Glued style boots can be challenging to install

Installing a split boot would be a breeze if you didn’t also have to add grease to the joint. The problem is,  you have to add a full package of grease to the new boot kit and then you have to try and glue the seams together. If you get any grease on the seams, you have to remove the boot and clean it because the glue will never hold with grease o on the seam.

Bolted split CV boots can cause vibration issues and have a short life

Several companies make split CV boots that join together with metal plates and bolts. That eliminates the issue of trying to glue a boot while also filling it with grease. But the metal plates, rubber flange and bolts cause the boot to be out of balance and restrict its ability to flex in turns. So you will likely encounter vibration when installing a bolted CV boot, and you should expect it to fail early.

©, 2023 Rick Muscoplat