rearend abody

toolmanmike said
Unless you know how to properly set up a gear set (pinion depth and drag, backlash, gear mesh pattern and the like) there is no "swapping out gears". in any rear end. You will need some special tools, equipment,parts, and know how.

Totally agree. This whole proposition sounds like a hassle for a /6 car. My2cents.

PS. Meaning if/and when that 7 1/4 hooks up, something is going to break. So have fun spinning tires until then.