🔧 Upgrade your ride with the ultimate CV boot—fit, function, and finesse!
The FB3001 Large Shaft Universal CV Boot by FLEXX BOOT is a durable, easy-to-install replacement part designed for cars and trucks with large shafts. It includes essential clamps and grease, allowing installation without axle removal, making maintenance faster and more efficient. Manufactured by Astoria 2000, this compact 12.6-ounce kit ensures reliable protection and broad compatibility.
| Manufacturer | Astoria 2000 |
| Brand | FLEXX BOOT |
| Model | FB3001 |
| Item Weight | 12.6 ounces |
| Package Dimensions | 5.55 x 4.8 x 4.13 inches |
| Item model number | FB3001 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | FB3001 |
C**R
2009 Chevrolet Silverado 1500 a bit loose but seems to be working out great
2009 Chevrolet Silverado 1500A bit loose, particularly on the narrow axle shaft side. That made it a bit of a trick to get it tight enough with the clips. But all in all very happy to save $250 for a new axle when the boot had only just failed.I will see how long they last. They seem solid enough, maybe a bit more rubbery than I had expected.
K**N
Easy Install. Great flexibility! Highly Recommended.
I recently used the Flexx Boot CV Boot to replace a torn CV boot on my front axle, and I couldn’t be happier with the results. This product is a real game-changer for anyone who wants to avoid the hassle of removing the entire axle. The installation was incredibly straightforward, especially with the included zip ties and grease packet. It fit securely and sealed tightly—no leaks or mess.The best part? It saved me hours of labor and the cost of a full axle replacement. The material feels durable and flexible, and it's held up perfectly through several weeks of driving in various weather conditions. No clicking, no grease loss—just smooth performance.Highly recommend the Flexx Boot to DIYers and mechanics alike. It's a smart, time-saving solution that really works.
K**.
This said it fit Chevy 1500 & Cadillac Escalade - they do.. ignore the specs in pic
Needed to fix axel in an Escalade, the Axel shaft is 29mm and the CV Joint end is 100mm the spec in the pic lists 85mm and axel size of 19-24But the rubber is flexible and easily stretches...I give this 4 stars . i did not like the clamps and had lots of thicker ones so i used those ..
B**L
Perfect fit on 2000 K3500
Boot is a perfect fit on our 2000 Chevy K3500 7.4l passenger side cv axle. Boot is pliable enough to slide over the axle joints without a spreader and comes with grease and new replacement clamps. Much better than replacing an axle because of cracked boots. Am going to order a spare set for the drivers side axle.
J**B
Doesn’t fit
Didn’t work on my truck. Ended up just replacing whole part instead of just boot.
Z**R
Not large enough for 2005 Silverado 2500HD 4WD LLY. Nearly impossible to install.
The "Amazon confirmed fit" lies about this fitting my 2005 Silverado 2500HD 4WD LLY. The "big end" of the boot is too small to go over the outboard CV cup unless it is stretched, which is like trying to wrestle a greased pig. Since I'd already cut the other boot off, I was forced to make it fit. Do not buy this for the above model.
J**R
Perfect fit and works well
2007 Tahoe was slinging axle grease on the passenger side front. Great price and fit perfect, I disassembled the cv joint to install (no special tools required). Comes with inner and outer boot clamps that can be cinched with needle nose pliers!
P**K
very pleased with this product
fits perfect arrived on time
Trustpilot
2 weeks ago
1 month ago
