Universal joint shaft

A1: Signs of a damaged u-joint include clunking, squeaking, and unusual vibrations. If you are experiencing these symptoms, you should consider u-joint failure as a potential cause. Damaged u-joints should be inspected and replaced immediately to avoid potential damage to other components.

A3: U-joints join rotational components together to allow them to move up and down with the vehicle's suspension while moving. The flexible connection that the U-joint has accommodates the changes in angle of the driveline as the vehicle travels over different terrain. U-joints connect drive shafts to transmission, transfer cases, differentials and connects two-piece front axles.

U jointscar

Thanks to its high wear and pressure resistance, this standard design is suitable for a wide range of applications, such as pumps, blowers, and compressors.

Universal Joint Catalogue

If you suspect a U-joint is going bad, you should replace it as soon as possible; since they link to so many other parts, faulty U-joints will quickly damage the rest of the drivetrain. Signs of U-joint trouble include squeaking/clicking at low speeds, vibrations at high speeds and clunking noises when you rapidly speed up or slow down.

Revolution Gear & Axle has the correct parts for U-joint replacement and custom builds. We carry genuine Dana Spicer universal joints. They are made of premium steel that will perform as well as or better than the original equipment. Known for being durable, Dana Spicer non-greaseable U-joints are pre-lubricated, so you don’t need to do any maintenance — just swap them out, secure them using the snap rings and go. They’re backed by a one-year manufacturer’s warranty.

We offer OE U-joints as well as the Dana Spicer Life Plus model for extreme performance. Check your vehicle manual to see which U-joint series (1310, 1350, etc.) you need. For custom drivelines, you will need to measure the cap diameter as well as the distance between the outside of opposite end caps. Contact us if you need assistance.

Compared with the standard version of type ElroSeal™ HN 2390, the friction-optimized special type has a significantly lower friction coefficient.

Designation example: rotary shaft seal with PTFE lip seal for shaft diameter d1 = 70, locating hole d2 = 78 and width w = 6: ElroSeal™ HN 2390 special type friction-optimized 70 x 78 x 6

U jointsreplacement

Designation example: rotary shaft seal with PTFE lip seal for shaft diameter d1 = 80, locating hole d2 = 100 and width w = 10: ElroSeal™ HN 2580 80 x 100 x 10

Universal joint axle fastener — or U-joint for short —are used to connect driveshafts, transfer cases, transmissions, differentials and multi-piece axles. The U-joint lets each component spin and move with the suspension for the best performance.

Designation example: rotary shaft seal with PTFE lip seal for shaft diameter d1 = 75, locating hole d2 = 100 and width w = 10: ElroSeal HN 2390 75 x 100 x 10

Universal joint examples

Rotary shaft seals ElroSeal™ HN 2580 for pressureless applications and/or pressures slightly above atmospheric. This version features a highly flexible sealing lip and an additional protective lip. Suitable applications include transmissions/gearboxes, machine tools, and pumps.