rebuilding control arm

[bluneon]

is it necessary to get the car re-aligned after replacing the bushings and ball joint?

cast arm.

[iTurbo]

I would at least have it checked to be sure it's within spec.

[iangoround]

As long as you don't seperate the strut or tie rod from the steering knuckle, you should be ok. Atleast, thats what I would think.

[Johnny]

Yes you should have the front end re aligned.
Johnny
http://www.polybushings.com