The MTX is cheaper than the ATX for some reason. If you have an MTX, you may be able to replace them with the sturdier and cheaper mounts (Poly-something or other

) from BAT. I didn't order my mounts from Sentry (like I said--car apart in shop), but from Ford the left rear to Fender Apron on ATX lists for $107. The rear left to crossmember lists for $80. The right front lists for about $123. The left front lists for $70. With Sentry you probably got a 15-20% discount. Like I said, try to get them online or from Sentry. It will save you money.