A Transmission Mount This is a HRparts "Transmission Mount" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6 running a 200r4 Transmission. These new mounts have proven to be indestructible on engines making 1400+ HP, and are... MSRP: Was: Now: $99.00 Add to Cart