833 strength

i have broke a 833 before in a 69 charger the trans came from a 72 340 challenger that had been wrecked (rolled over) the engine was well modified. had 323 gears n 50 15 tires. i droped the hammer to that thing every day at least 5 to 10 time a day if not more and for many years and finally striped teeth off the counter shaft. the trans in those 72 small block cars, the gears are a little smaller dont know ratio stuff on them. since then i put a trans out of a 68 road runner and never broke it. i have had other 72 and neweer trans and put the power to them and never broke them so anyhow