At first blush, one wouldn’t guess that our recently-purchased 1999 Pontiac Firebird Trans Am with the optional WS6 Ram Air and Handling Package has nearly 100,000 miles on its odometer. It was a two-owner vehicle we found on local used-car lot that had been purchased at a dealer auction. The undercarriage cleanliness suggested it hadn’t seen the salty roads associated with Nebraska winters, and the overall condition of its exterior and interior says it was well cared for by a proud owner. So many Firebirds and Camaros of this era have been modified over the years. The addition of aftermarket intake and exhaust components, larger wheel and tire packages, high-end audio equipment, and suspension upgrades is commonplace. Not a single component had ever been replaced or modified on this Trans Am beyond the warranty repairs and general maintenance performed by the local GM dealer. The LS1 V-8 under hood runs exceptionally well and its 4L60E automatic transmission operates as it should Despite its originality and excellent operational condition, our Trans Am was due for a bit of routine maintenance. Its brakes pulsated during application at higher speeds, and the suspensi...