Buick LeSabre 2000-2005 3.8L Engine and Transmission Mount Kit

The 3800 V6 in a 2000-2005 LeSabre, Park Avenue or Bonneville is a long-lived engine, which is exactly why these cars outlast their mounts. When the mounts collapse you get a thump going into drive or reverse, a buzz through the floor at a stoplight in gear, and the engine visibly lifting when you brake-torque it with the hood up. A torn transmission mount also lets the 4T65E rock on the cradle and can make the shift feel harsher than it really is.

This kit replaces the front right engine mount plus all three automatic transmission mounts: center, front left and rear left. It fits the 2000-2005 Buick LeSabre and Park Avenue 3.8L V6 and the 2000-2005 Pontiac Bonneville 3.8L V6. Cross references: A2896HY, A2897HY, A2898, A2895HY, 2895, 2896, 2897, 2898, EM2895, EM2896, EM2897, EM2898.

Support the engine with a jack and a block of wood under the oil pan and change one mount at a time so the powertrain stays located. Snug the through-bolts, set the car back on its wheels, then do the final torque so the rubber is not loaded in a twisted position. If the shift complaint goes away after the trans mounts are fresh, you just saved somebody a transmission diagnosis.