When your front axle drive shaft starts knocking or you lose 4WD power in the middle of fieldwork, it's often a failed circlip that's let you down. This M40 external circlip might look like a simple piece of bent wire, but it's what keeps your front axle drive assembly properly secured and transferring power when you need traction most. What You're Getting Spring steel construction that maintains tension through constant vibration and temperature swings Precise M40 external diameter for exact fit in New Holland front axle assemblies Heat-treated finish that resists wear and prevents loosening under dynamic loads Direct replacement part that installs with basic hand tools Built for Real Farm Work This circlip fits the front axle drive shafts on a wide range of New Holland tractors from the smaller TSA and TL utility models up through the big T7000 and 8000 series row-crop machines. Whether you're pulling a planter through spring mud, baling hay on hillsides, or running a loader all day, reliable 4WD engagement keeps you moving when two-wheel drive just won't cut it. Made to Last Front axle components take a beating from shock loads, constant flexing, and exposure to dirt and moisture. This agricultural-grade circlip is built specifically for these demanding conditions, with materials and heat treatment designed to maintain proper retention force season after season. It won't fatigue and fail like generic hardware store clips that aren't designed for this kind of abuse. Installation Notes You'll need to remove the drive shaft to replace this circlip, but it's straightforward work with basic tools. When you're in there, it's smart to inspect the whole assembly and consider replacing internal circlips at the same time since they typically wear at similar rates. A little preventive maintenance now can save you from unexpected downtime during critical farming seasons.