Front end alignment after replacing rear coils?

[MPB]

Is it necessary to do a front end alignment after replacing rear coil springs on 06 trailblazer 4.2?

I just had a front end alignment a couple of months ago after replacing upper and lower control arms, upper lower ball joints, tie rod ends and wheel hub bearings on the front,I don’t really want to pay to have it done again if not necessary. Thanks

 

[TollKeeper]

If you just unbolted the shocks, dropped the springs, and put new in.. No it isnt needed.

If you unbolted the control arms, then yes.