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2011 RZR front diff changes

4K views 0 replies 1 participant last post by  HawkEng 
#1 ·
Here is what changed on the 2011 front diff. As you can see from the pictures, it has a different case which is very beefy compared to prior years. I had the new one apart and took pictures, but I didn't take a picture of the backside of the cover. Here is the outside comparison.

The pinion area is larger in diameter and longer. They made the pinion longer by 3/4", so the driveshaft is shorter to make of for this. You can buy the 2011 driveshaft or we can shorten, strength, and balance yours.

Now, the small allen screw that is on the older cases for setting ring and pinion clearances is gone. The new diff now has a hard plastic ring around the inside the keeps pressure on the ring to keep it against the pinion(this is the picture I forgot to take). This was a problem with the older units. Wear and or HP would cause the pinion to slip and chip teeth and distroy itself. This should solve this problem now. It comes with the same aluminum sprague and return spring the 2010 diff has. I have this unit going in my Apex for testing.

If I have time, I will pull it back apart and take a picture of the inside cover before I install it.
 

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