Dana 60???

[Cudachuck]

Would this work on a 71 cuda?
Narrow Dana 60 Rear Axle Housing Jeep 4X4 Crawler Hot Rod Drag Car | eBay

 

[70chall440]

You need to find out what the length is but pretty sure you would have to move the spring purchases, then get axles gear set, bearings, etc. If you want a Dana, just order a Strange S60, you get it complete with whatever gear ratio you want ready to bolt into your car for like $3000. Also that one you list doesnt have the top bumper plate so you will need to run a pinion snubber arrangement to keep it from beating the crap out of your floor, however the S60 does. The S60 is a MUCH better option, call Dr. Diff and he can hook you up.