Custom axle question

[NeoSlayer888]

I am thinking of ideas for a school project “junior/senior project for sci-tech”. I want to make a bigger type crawler with a weed eater engine and handcartish tires. I would probably just design it in solidworks and not make it. My question is has anyone seen axles with a worm gear? I think it would work well because of the high clearance and gear ratio. The problem is the wheels would not be able to turn by themselves. If one of the tires did spin by itself it would sheer the worm gear. So does anyone think there would be a problem with a worm gear? If not would there be any problem if there was a rear cutter brake?

[Plays_with_Toys]

The problem with a worm gear is you would not be able to just back off the throttle, this creates a huge backlash, you would slowly have to come off the throttle. With some throttle control and beefy design you might be able to make it work. What ever kind of carzy 4x4 you make they will drool over it. I brought in my stock TLT and people were going nuts over it. 4-links won't make the women swoon, but it does impress many people.

[NeoSlayer888]

Plays_with_Toys did you machine any gears for you project? If you did was it done on a mill and how hard was it? If I continue with this idea I would probable just have the gears meet at 45 degree angle but tilted a little up like an X-Factor axle. Making a helical type gear like on a 1:1 would be too hard.