The Spicer 1350/1410 Universal Joint and U-Bolt Kit is a heavy duty driveline solution built for high torque, high load applications common in off-road, racing, and performance builds. Manufactured by Spicer, this kit delivers proven durability and precise fitment trusted across OEM and motorsports applications.

The included 1350/1410 series U-joint features round bearing caps, ensuring smooth operation and long service life. The matching U-bolt kit is sized specifically for 1.188 in. bearing caps, providing proper clamping force to keep the joint securely retained under extreme conditions.

This kit is ideal for axle yokes, driveshafts, and transfer case outputs running 1350-series components.

Includes:

• (1) Spicer 1350 Universal Joint
• (1) Spicer 1410 Series Universal Joint
• (2) 1350/1410 U-Bolt Kit

Specifications

Universal Joint

• Series: 1350/1410
• Greasable: No
• Bearing Cap Type: Round
• Bearing Cap Diameter (in):
  • Cap 1: 1.188 in.
  • Cap 2: 1.188 in.
• Bearing Cap Diameter (mm):
  • Cap A: 30.175 mm
  • Cap B: 30.175 mm

U-Bolt Kit

• Fits Bearing Cap Diameter: 1.188 in.
• Thread Size: 3/8 in.-24

Fitment

• Designed for 1350/1410-series driveline applications
• Universal fit where 1350/1410 U-joints with round caps are required

Tech Insight

1. What is the difference between a 1350 and 1410 U-joint?

Both 1350 and 1410 series U-joints are popular heavy-duty driveline components, but the 1410 series generally features a wider cross and greater torque capacity. They are commonly used in rock crawlers, race vehicles, diesel trucks, and high-horsepower off-road builds where drivetrain strength is critical.

2. Is a 1350/1410 U-joint strong enough for large tires and off-road use?

Yes. The Spicer 1350/1410 series is widely used in rock crawlers, Ultra4 race cars, rock bouncers, mud trucks, and heavy-duty tow rigs. Its larger bearing caps and robust design provide significantly more strength than smaller 1310 and 1330 series driveline components.

3. Why should I use U-bolts instead of strap-style U-joint retainers?

U-bolt retention systems provide more consistent clamping force and improved bearing cap retention compared to many factory strap-style systems. Properly installed U-bolts help reduce bearing cap movement, improve driveline reliability, and minimize the risk of U-joint failure under high torque loads.

4. How do I know if my driveshaft uses a 1350 or 1410 U-joint?

The easiest method is to measure the bearing cap diameter and overall cross width of your existing U-joint. You can also identify the series by checking part numbers on the driveshaft, yoke, or vehicle specifications. If you're unsure, contact us with your measurements and we'll help verify fitment.

5. Are Spicer U-joints good for racing and high-horsepower applications?

Absolutely. Spicer universal joints are trusted by OEM manufacturers, off-road racers, rock bouncers, drag racers, and drivetrain builders worldwide. Their precision manufacturing, material quality, and proven durability make them one of the most respected names in performance driveline components.