Rear end 8 &3/4 for a b-body 73-74 roadrunner

Have a 73 Challenger 8 3/4 complete except missing brake drums,has the springs still attached and has a 276/741 chunk. Good used condition.
$400.....anyone ???
[email protected]
Arkansas
501-362-5903

I didn't think a e-body rearend would fit in a b-body?