rear end switch on my 64

[ninjapumkin]

I have a 64 Polara.
Original stock rearend, driveshaft and tranny.
I replaced the springs with S/S springs but need to change
the rearend housing. Want to go with a Strange housing
with new axles. What else do i need to do?
Driveshaft? Tranny?

 

[Dodge 330]

Is the Strange an 8 3/4 also?

If so it should bolt in using the existing driveshaft length etc.