Dana 60 5x4.5 full floater?

Mine weighed 4000Lbs and made 470+HP.
It set NHRA National Record N/SA well in the 11's
It is still being race for a dozen more years in the Northwest
and has not had an issue since I put good Axles in it!
If you ever have an opportunity to set up a Dana 60
in a car on you back, I do not think you would find it easier
than the 8 3/4 that you can take out and put on your workbench.

Just my .02.
Your Mileage will vary