Engine downspeeding calls for faster axle ratios, which require a stronger, more durable driveshaft to handle the added input torque. SPL^® 350 main driveshaft and mating SPL^® 250 inter-axle shaft are specifically designed to handle the greatest amount of torque for severe-duty vocational applications as well as low-emission, high-efficiency trucks. 

Available in standard service and extra heavy-duty versions, these additions to the Spicer^® family of heavy-duty U-joints extend the expected life of the drivetrain and eliminate application restrictions on engine power in today’s Class 8 linehaul and vocational vehicles.

• More power density than competing products
• 40 percent more torque carrying capability over competitive designs
• Capable of meeting future fast axle ratio requirements
• Ideally suited for high-power/heavy-haul applications (NAFTA, Australia, South America)
• Quick Disconnect™ end yokes with cold-formed bearing retainers act as structural elements to reduce deflection and rotation while improving strength and serviceability

Service Free

• No lubrication required for life of product
• Reduced maintenance
• Extended product life

SPL 250/350 Spec Sheet 
Spicer^® Specifications Guide
Video
Downspeeding Spec Sheet
Dana Difference Calculator