No it isn't but a front end alignment is a good idea if you haven't had one done in awhile. Especially if you have pricey tires and don't want them to wear unevenly. Any decent wheel/tire shop should charge $20/tire to mount and balance and then probably $50-$75 for an alignment. If you do it as a package you can probably get a deal. I would not go back to that place just for the fact that they tried to sell you a 4 wheel alignment on a solid axle car. They're either morons or shysters or both.
2000 Mustang GT Steeda #0048 34k miles. 99 Cobra 4V swapped, FTBR IRS swapped, exhaust, tuned by James Gordon.
Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.