Description

When you’re pushing through tough field conditions with your 4WD engaged, the drive shaft bolts are taking a serious beating. These high-grade bolts are what connect your drive shaft components together, transferring all that power from your transmission to the front axle. If you’ve noticed vibration in the cab or heard clunking from underneath, a loose or stretched drive bolt could be the culprit that needs your attention.

What You’re Getting

Grade 10.9 high-tensile steel construction handles the extreme torque loads of 4WD operation
Precision 3/8 UNF thread specification provides secure, tight fit in your driveline
25mm length designed specifically for Massey Ferguson 300 series 4WD applications
Direct OEM replacement that installs with standard tools

Built for Real Farm Work

This bolt is engineered for the demanding 4WD systems found on Massey Ferguson 300 series tractors. Whether you’re using your 362 for loader work in the barnyard, running a 390 through muddy spring fields, or putting your 399 to work pulling heavy implements across uneven ground, these bolts keep your front axle connected when traction matters most.

Made to Last

Grade 10.9 steel isn’t just a number – it means this bolt can handle over 150,000 PSI of tensile strength. That’s the kind of toughness you need when your 4WD system is transferring maximum torque through tight turns or when you’re climbing hills with a loaded spreader. The precise threading won’t strip under stress, and the hardened steel resists the constant flexing that comes with driveline operation.

Installation Notes

Always replace these bolts in pairs to maintain balance in your driveline. Clean the threads thoroughly before installation and apply a small amount of thread locker to prevent loosening from vibration. Torque to your service manual specification – over-tightening can actually weaken the joint.