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SAME Deutz-Fahr Front Diff Upgrade Kit – Spider Gear Upgrade
- ProPart
A front diff that went “Agro-crunch” instead of “Agroplus”
Sometimes a job comes into the workshop that makes you wince just looking at it. This Agroplus 95 front diff had a spider pin come loose, and those metal shavings scattered through the housing tell the whole story.
When spider pins let go, they don’t go quietly – the damage spreads fast, chewing up gears, housing, and anything else in the way. It’s the kind of break that no one wishes on anyone, and it usually means the tractor’s sidelined until it’s sorted.
The Fix: An upgrade kit that’s tougher than the original
Rather than trying to patch up the carnage, the smart move here is a complete front diff upgrade kit. We stock these specifically because we know how common (and catastrophic) these failures can be.
Our Front Diff Upgrade Kit doesn’t just replace like for like- the factory improved on it. SDF actually offers this as a factory upgrade to replace the two spider gears with four, dramatically improving the strength and longevity of the differential. Inside each kit, you’ll find the spider gears, diff housing, extra spider pins, and all the other required gears, rings, washers, bolts and more – everything collated together so you’re not hunting around for individual parts.
These kits fit a large portion of the SAME & Deutz-Fahr range and we keep them on our shelves for quick fitment next time you come across a destroyed diff.
Check them out here:
ProPart Insights: Why front diff spider pins fail (and why the upgrade works)
Spider pins are under constant stress, especially in tractors doing heavy work or operating in tough conditions. With only two spider gears handling all the load, each component works harder and wears faster — which is exactly what happened to this Agroplus 95.
The upgrade to 4 spider gears spreads the load more evenly across the differential, reducing stress on individual components and making the whole assembly much more robust. It’s simple engineering — more contact points mean better load distribution and longer component life.
A solid tip from our parts desk: This is the kind of upgrade that’s worth doing proactively during scheduled maintenance, rather than waiting for a failure that sidelines your tractor. And while you’re in there, check the condition of your front axle oil — clean oil and regular changes go a long way toward preventing these failures.
The Call to Action: Got a front diff that’s seen better days?
Don’t wait for the “agro-crunch” moment — if your front diff is getting noisy or showing signs of wear, get in touch and we’ll sort you out with the right upgrade kit.
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Workshop manuals & advice are available from our team — we know SAME & Deutz-Fahr inside out.
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Tough jobs need tougher parts. Ask us for a quote on any tractor parts today!
We guarantee to put the right parts in your hands, and aim to make it easy for you in the process.
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