Wheel Air Deflectors

Hi Mr. B,

I like to use pusher holes below the axles... a buddy told me that it is also necessary to have tuning grooves in the rear axles to "crack the initial seal" and then use the pusher holes.

This way one will not damage the bore/ outer hub when pulling on the wheel.

If you are comfortable making k-grooves then put k-grooves in the head of your back axles. When you want to remove the rear wheels just twist the back axles with a small screwdriver like you are adjusting the DFW. As you twist the axle, which breaks the seal, gently push outward on the inside edge of the wheel. It should slowly slide out.

+1

I think it helps if the axles are fitted to the body so they're not too tight in the holes.

Tip: When making the K-House groove in the axle head. A clean square bottom in the K-House groove/slot helps reduce the screwdriver from "climbing" out. A rounded bottom slot will allow the screwdriver tip to climb out of the groove once pressure is applied while turning. The rounded bottom is nothing more than a ramp to aid the screwdriver tip in climbing out of the groove/slot. In order for the screwdriver tip to work properly it needs a good surface to grab onto. The use of a nice good clean square tip on the screwdriver is also recommended.

After all, you don't want to ruin all that hard work you put into prepping that wheel with one small slip of the screwdriver. Do ya'?

Gravity, what are you using to cut a clean square bottom in the K-House groove?

I'm using a setup that is a little out of the ordinary, but not unheard of by a few other racers. The use of a slitting saw creates the nice clean square bottomed slot. A very rigid setup works best, this way it minimizes deflection. I had used a very similar method prior to this, but I did not like the slot it produced, a rounded bottom. Not good! 

There are other options out there as well, like a screw file, which is specifically made for creating a nice clean slot. These can typically be found where gunsmith's shop for their tools, but they are not exactly cheap. Look at Brownells and similar places around the internet.