NEW Center Section MS 5.67 31 Spline 1310

The NEW Center Section MS 5.67 31 Spline 1310 is a fully assembled differential center section engineered for high-performance driveline applications where reliability and load capacity are non-negotiable. As an experienced mechanic, you understand that the center section is the heart of any axle assembly—it's where torque distribution and gear engagement happen. This PEM unit is built for enthusiasts and professionals who demand precision engineering in their custom drivetrain builds, whether for off-road trucks, performance street vehicles, or competitive motorsports applications.

The 5.67 ratio combined with 31-spline internals delivers optimal power delivery and durability for mid-range performance builds. The 1310 designation indicates cross-shaft compatibility with common 10-bolt and 12-bolt differentials, making this center section a direct upgrade path for owners rebuilding older or damaged units. With a robust construction weighing 87 lbs, this pre-assembled section eliminates the guesswork of individual gear installation and backlash tuning—critical factors that separate a smooth, quiet axle from one that develops premature wear or noise. PEM's reputation in the industry reflects their commitment to tight tolerances and quality heat-treating of all internal components.

Mechanics and build shops favor this center section for customers looking to upgrade worn-out original equipment or swap to a more aggressive ratio for towing, rock crawling, or highway cruising. The 31-spline count provides excellent load distribution across gear teeth, reducing stress concentration and extending service life under sustained heavy use. Installation requires standard axle housing preparation and is compatible with stock or aftermarket carrier bearings; verify housing bore specifications and bearing size compatibility before ordering. This unit ships fully assembled and ready to bolt in, cutting your shop labor time and ensuring consistent quality that matches your installation standards.