Tell me how strong was or is you 7 1/4 rear.

I had one behind the stock 273 2 barrel with a 4 speed & about 9" wide tread 60 series bias ply tires. I broke teeth off a spider gear on a hard shift into 2nd gear. It took some abuse from me beforehand, but I don't remember for how long. Probably about a year. I also think somebody had been into the rear, before I bought the car, to fix a problem.