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Availability:
In Stock.
Arrives
Saturday, Sep 5
Material Type: 1 Pack Kit
Features
- Fits shaft size 19mm-24mm
- - Enables the repair of cv joints by replacing old, worn out boots without needing to remove the axle itself
- - Specially Formulated, Highly Flexible & Durable so it can be installed with the use of a Pneumatic CV Boot Installer, an Installation cone or the Traditional Way
- - Save Time and Money as compared to an axle replacement.
- - Ideal for Preventative Maintenance that keeps the vehicle in its OE State
Description
The Flexx Boot FB 3000 is a universal replacement CV boot for mid-sized cars with axles that are 19 - 24 millimeters wide. The boot is made of rugged, durable NEO 50 / CR +32 component rubber. Each boot comes with one #3 and one #4 Gomex clamp as well as one packet of CV boot grease. Installation Tips:
Manufacturer: ‎FLEXX BOOT
Brand: ‎FLEXX BOOT
Model: ‎FB3000
Item Weight: ‎10.9 ounces
Package Dimensions: ‎5.2 x 4.29 x 3.98 inches
Item model number: ‎FB3000
Exterior: ‎Machined
Manufacturer Part Number: ‎FB3000
Date First Available: March 28, 2013
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Sep 5
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Material Type: 1 Pack Kit
I'm glad I chose this CV boot as a replacement for my daughter's 2010 Ford Escape. I had previously replaced a torn outer boot using one of the glue together boots and it ripped again within months. This time, I figured I would do it right with a one piece boot. I was convinced I would remove the axle end from the wheel hub and pull the whole CV joint off in order to gain full access and make it an easy job. Before doing so, I read the review where the guy bought the Walmart Hypertough Large Engine Funnel (search for part number HTLEF-2020) and cut the end off to make a cone to stretch the boot over so he could install without removing the CV joint. I was at Walmart a few days later, so I bought one just in case for $3. The following weekend, I went ahead and started the job. I removed the tire and wheel, brake caliper and then took the two bolts out the held the hub to the strut. I also took off the big nut that holds the axle into the front bearing. After that, you can just tilt the whole wheel hub piece forward on the ball join and get just enough room to push the axle out and remove the outer end from the wheel bearing so you have complete access. I cut the old torn glue together boot off and prepared to remove the CV joint. After a lot of looking, I couldn't see a clip that I expected to find to remove the joint. I fumbled with it for a while and just didn't see an easy way to remove it. Unconvinced about the funnel idea and sure I would split and ruin my new boot by stretching it out way too far, I figured what the heck, I'll give it a shot since I already had the funnel. I cut the big outer end off the funnel, cutting just enough so it would be a nice symmetrical cone. This left it the perfect size to slide over the outside of the CV joint and also cover the ABS ring that would surely cut the boot otherwise. I put the funnel over the CV joint and warmed up the boot with a heat gun so it was nice an pliable. On my first attempt, I greased up the funnel and tried to push the whole boot on right side out with the small end first. I got it about halfway and there was no way it was going to make it all the way on. I was getting a little discouraged and then remembered a review where the guy said he turned the boot inside out before slipping it over the funnel. That was the key, but here's what you need to know since it took me a few attempts: Flip the boot inside out and make sure you grease the funnel. Then start pulling the big end of the boot over the funnel. Get as much of the boot off the funnel and onto the axle as soon as possible. This is what was making is so difficult when I was first doing it and when I did it right side out. If you have the whole boot on the funnel at once, you are trying to stretch out the whole boot at one time instead of a small section. Pull the boot little by little up the funnel and again, keep getting as much of the boot off the funnel and onto the axle as possible as you move along. To my amazement, I got it to pop on and was easily able to flip it right side out. I had to triple check it because I could not believe it didn't split in half stretching that much. It worked...I'm amazed, but only after doing it this way. The last part of the job is inserting the grease, which is a messy but easy job. Just keep packing it into the joint as much as you can. If your boot was a mess, and dirt got inside, you should remove the old grease first. Installing the bands was the next new thing for me. I wasn't sure how the worked but eventually figured out that what you do is put them on by hand, as tightly as possible by clipping them so the little hooks go into the holes in the bands. Get them as tight as you can in this step because what you are going to do is crimp the square part the sticks up to tighten them. I had a tool (pictured) that is used to crimp underground sprinkler pipe clamps in the same way. You can get these tools at any hardware store. These provided clamps are just like a sprinkler clamp but adjustable. So put them on as tight as you can and then use a sprinkler tool as pictured to crimp the square part to tighten them up. I had to trim a little bit of the very outer edge of my universal boot to remove some excess material, but other than that it fits and appears to be just what I needed. I hope this helps someone!
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Reviewed in the United States on August 6, 2023 by DiyDiagnostics
Material Type: 1 Pack Kit
Good quality product, very flexible and resistant.
Reviewed in the United States on June 22, 2026 by DAVID SAUCEDO
Material Type: 1 Pack Kit
I’d rate high for the DIY option available for people like to do by themselves. Boot needs little trim at the bigger end and fit accordingly. I was inclined to replace complete cv axle and got one from Autozone but there is a big hassle in taking it out on passenger side. That’s where this is handy as I just need to replace outer one. Used the transmission funnel from Walmart and cut out exactly at its largest diameter possible. Surprised to believe that it is exact fit for Toyota Camry 2009. Using Palmolive dish soap as such(no dilution) it worked like butter. Just one strong push is all it needed.Ensure one has good grip gloves. One has to ensure that to remove axle, tie road and ball joint from lower control arm and brake caliper set aside, exactly the way one would do to remove cv axle. Doing this gives good space. Overall for a naive like me it’ll take around 1-2 hours with hand tools. And I guess that’s what mobile mechanics too charge but they’d like to replace instead of doing greasy boot job. It’s lot of labor to such jobs. Hope it stays for long year’s.
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Reviewed in the United States on July 11, 2022 by DC
Material Type: 1 Pack Kit
Unfortunately it was not the fit for our car but it came in good conditions
Reviewed in the United States on April 29, 2026 by MarÃa De Jesús Peña GarcÃa
Material Type: 1 Pack Kit
Not sure how a cheaper knock-off boot would hold up, but I soaked the Flexx Boot in very hot, nearly boiling, water to make things a little easier. Then I smeared white lithium grease all over the outside of an installation cone. I set the cone on the floor, and used both arms to push the new boot over the cone to the very widest part. Then I put the cone over the CV joint and pushed the boot the rest of the way and it popped off the cone. Worked perfectly. Since I have the special band crimper, I used the included clamps. The larger one went on fine... the three hooked engaged in three holes and I crimped. Then the last two nibs pulled out of the holes leaving the band only held by one nib. I ordered replacement bands of a different brand and reinstalled the large band clamp. No issues with the second attempt. The boot also seems to have two different size choices on the larger end. The very end of the boot seemed to be too large for my CV. It appears like if you try to crimp here, you'd bunch up the rubber and leave a gap in places. So I pulled the CV into the second slightly smaller area and cut off the larger end of this "excess boot". My only gripe is that although this seemed like the obvious thing to do, there is nothing in the instructions to indicate this.
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Reviewed in the United States on December 6, 2025 by John K.
Material Type: 1 Pack Kit
I have a Saturn Vue, and this boot was suppose to fit. The smaller end was too small for the shaft, and the large end was too big for the CV joint. The rubber was soft and flexible enough that I could have made it work, but I would not have trusted the durability. I ended up repairing the old boot and using that.
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Reviewed in the United States on August 28, 2024 by kingf
Material Type: 1 Pack Kit
These boots are junk. I have a Subaru Outback that is lifted 2 inches over stock height, and my OEM boot had developed a tear after 40k miles and a little over a year. I figured I’d try these silicone ones due to the more pliable material and slightly larger size. Having a lifted Subaru is harder on the OEM boots due to the increased angle of the CV axle after lifting. These were recommended to me by someone in a lifted Subaru group I’m in. I installed this boot December 23, 2025, and it is the 2nd week of April 2026, and I just looked under the vehicle this past week to check and make sure everything was looking OK—only to realize that the boot has a hole in it somewhere and grease is leaking out. So I had to replace the boot again today, which I just went with one from NAPA this time—which looks exactly the same as an OEM Subaru one—seems more durable but less pliable. I guess I’ll probably just have to replace the boots every 40,000 miles or so with the lift. This one didn’t even last 4 months. Waste of time.
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Reviewed in the United States on April 14, 2026 by J. Bartoletti
Material Type: 1 Pack Kit
Quedó bien para mà kia rio 2013, encajó perfecto como si fuera original
Reviewed in the United States on May 30, 2026 by Carlos Garcia