I have to replace the upper control arm bushings on the driver's side, will replacing the bushings effect my alignment?

Thanks

 

very well could. I'd have it checked to be sure.

 

the bushings are not that bad, they just give a little tapping on the floor over bumps.

 

are you going with a stock kit from the dealer ? I'd spend the extra for an aftermarket set of polyurethane bushings. Do the whole front end if you have the time and money, then your not getting your alignment done every time another part wears out. Your truck will feel better too. You should have your alignment checked if you work on your front end especially if it has been a long time since it's been done.