Making The Weak 7-1/4 Rear Axle Live... Kinda

My first car, a 1972 Duster, had a stock 318 with a 7 1/4. I worked after school pumping gas and helping the owner in a garage.

One day I power brake the car in the gas station parking lot and bang.....
Owner says "I'll order up some spider gears and you can help me replace them tomorrow". Mind you, this was around 1979.

We replaced them and I didn't do any more power braking. Lasted a few years until I sold the car.