Station wagons had a Dana 44 which has been used in billions of cars and trucks over the years and parts are readily available.
The sedan rear is a Ford design, has a drop out center section and 12 spline axles. It will hold up as long as you don't dump the clutch and do burnouts everyday. You will likely break an axle if you install wide, sticky tires and drive it hard.
There are a few guys around town here that have '55/'56's with the Ford-style rears behind 390's and have never had a problem... and they built these cars in the 60's. But they don't beat the crap out of 'em either.
I'd run it until it breaks... then switch to a 9 inch.
The sedan rear is a Ford design, has a drop out center section and 12 spline axles. It will hold up as long as you don't dump the clutch and do burnouts everyday. You will likely break an axle if you install wide, sticky tires and drive it hard.
There are a few guys around town here that have '55/'56's with the Ford-style rears behind 390's and have never had a problem... and they built these cars in the 60's. But they don't beat the crap out of 'em either.
I'd run it until it breaks... then switch to a 9 inch.
