Has anyone heard of a Vaccum assist "Columbia" rear end that is manually operated????
And if so, what is the gear ratio, and how do I gather more info on it????

 

I may be wrong, but if that is a Dana axle, It may be what's called an Air Locker. You might have better luck looking under air locker. Send me an email off the board, and I will try to help ya out!

Ron

 

Columbia 2 spd rear ends where made for the old style ford bango rears 48 car and earlier. If you get your hand on one there worth $$$$.00

 

Thanks to all for the feedback...and suggestions.
The F-250 is the first Ford to be owned by yours truely, and after only a couple of weeks I've already grown attached to it. Yes, I've been a Generous Motors man most of my life...Anyway, it took me awhile to get here, and I kind of like it.
pb

 

Look up Randy's ring and pinion on the web he has a site. Call them about it. There very good with helping people.

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