Indiana Open Wheel - Reasoning behind different spline midget rear axle?

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- - Reasoning behind different spline midget rear axle? (https://www.indianaopenwheel.com/showthread.php?t=94550)

flyin9

9/9/16 12:05 PM

Reasoning behind different spline midget rear axle?

I have been around sprint car racing a while but just getting into watching midgets. I see that there are 31 and 36 spline rear ends for midgets. Is there a reason to use one over another or are they used in different situations? Or is it just a change in technology; stronger, lighter, faster, ect?

Thanks!

Tony74

9/9/16 1:20 PM

Re: Reasoning behind different spline midget rear axle?

36 spline came out as a stiffer option to eliminate some flex of the smaller dia 31 spline

badcoupe

9/10/16 1:25 AM

Also some people had problems with the 31 breaking at the shoulder of the splines. Axle is substantially stronger and better tolerates the power levels of the newer motors.

flyin9

9/12/16 2:26 PM

Re: Reasoning behind different spline midget rear axle?

Makes sense, Thank you

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