9 1/4 rear?

The axles are held in place with a clip, in the shape of the letter "C". It is located near the center of the rear at about 1/2 - 1 inchs from the axles end.

When this breaks, the axle is now free to leave the rear end housing. They do not often break and will take quite a bit of power to do so in most cases, but when they break, the price of fixing whats left can be alot, to mega money.

They sometimes break in stock powered cars.