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New Edge Cobras
Rear Axles
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<blockquote data-quote="Wingless99" data-source="post: 80250" data-attributes="member: 2464"><p>I am pretty sure the principals of an axle is the same whether it is inside a differential housing or not (like on the IRS). A 31 spline axle is typically of a larger diameter than a 28 spline axle for a given application therefore it has the "potential" to be stronger which is why 31 spline axle are sought after. Since the shaft is larger in diameter there are typically more splines on it and the splines tend to be a little larger than on the smaller shaft. This does help prevent spline sheering but more importantly the shaft is typically stronger because it is larger diameter. I guess since the stock 99 axles are breaking in locations other than the splines then the 28 spline count must not be an issue (yet). If an aftermarket shaft addresses these other weak areas on the axle but still have the same smaller diameter 28 spline end on it then I would guess the weak link on the aftermarket shaft would be in the spline area.</p></blockquote><p></p>
[QUOTE="Wingless99, post: 80250, member: 2464"] I am pretty sure the principals of an axle is the same whether it is inside a differential housing or not (like on the IRS). A 31 spline axle is typically of a larger diameter than a 28 spline axle for a given application therefore it has the "potential" to be stronger which is why 31 spline axle are sought after. Since the shaft is larger in diameter there are typically more splines on it and the splines tend to be a little larger than on the smaller shaft. This does help prevent spline sheering but more importantly the shaft is typically stronger because it is larger diameter. I guess since the stock 99 axles are breaking in locations other than the splines then the 28 spline count must not be an issue (yet). If an aftermarket shaft addresses these other weak areas on the axle but still have the same smaller diameter 28 spline end on it then I would guess the weak link on the aftermarket shaft would be in the spline area. [/QUOTE]
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