I saw this on another forum. Thought it looked interesting. Would this cause something else to break instead of the cage?http://www.dragonfireracing.co...r-sprague-carrier.aspx

 

it would be interesting for sure i think years ago they tried using something differnt(metal of somekind) and it caused other issues of some kind. it would be nice if the memeber who said he works for the hillard co. would chime in on this issue.

 

Let me start by stating the design intent of the roll cage itself. The main purpose of the roll cage in the front drive is to provide uniform spring tension on the 14 (old style) or 20 (new style) clutch rolls to keep them centered in their respective pockets in the ring gear clutch profile. They are prone to failure only if the clutch rolls exceed the designed torque capacity of the clutch mechanism. When the torque is excessive, the rolls are pinched out of the pockets and thrust back into the roll cage. Obviously, the Amodel cage is the weak link in this occurance.

Now, the aluminum cage shown in the link above is not an approved Hilliard replacement to the stock Amodel cage and most likely will void the Polaris warranty. The cage shown in the link does not appear to be hard anodized - The lack of hard anodizing will allow the rolls to impact against the inner pockets and over time deform the cage and or spring pockets. This would lead to either chips of aluminum floating around in the differential or lack of proper spring force on the rolls leading to unwanted engagements at high speeds. I do not have any additional comments on the cage shown above - if it is hard anodized then it will be an improvement over the stock Amodel cage. If not, again, buyer beware!

 

<div class="FTQUOTE"><begin quote>Originally posted by: lksyotas

Let me start by stating the design intent of the roll cage itself. The main purpose of the roll cage in the front drive is to provide uniform spring tension on the 14 (old style) or 20 (new style) clutch rolls to keep them centered in their respective pockets in the ring gear clutch profile. They are prone to failure only if the clutch rolls exceed the designed torque capacity of the clutch mechanism. When the torque is excessive, the rolls are pinched out of the pockets and thrust back into the roll cage. Obviously, the Amodel cage is the weak link in this occurance.



Now, the aluminum cage shown in the link above is not an approved Hilliard replacement to the stock Amodel cage and most likely will void the Polaris warranty. The cage shown in the link does not appear to be hard anodized - The lack of hard anodizing will allow the rolls to impact against the inner pockets and over time deform the cage and or spring pockets. This would lead to either chips of aluminum floating around in the differential or lack of proper spring force on the rolls leading to unwanted engagements at high speeds. I do not have any additional comments on the cage shown above - if it is hard anodized then it will be an improvement over the stock Amodel cage. If not, again, buyer beware!</end quote></div>


Good info....
Aren't you a engineer for Hilliard? If so maybe you can shed some light on what causes the front diff to engage when the AWD is not selected...apparently that is how alot of cages get broken. Rear tires spinning alot faster than the fronts and BAM the front engages on it's own. I don't personally do doughnuts or anything like that so I haven't ad the problem but I know some have. Additionally if this is happening shouldn't there be a warning? I have seen no warning referencing uncommanded front diff engagement.


Thanks