High machine polish aluminum underdrive pullies are back in stock here at American Muscle. Reducing parasitic drivetrain loss by cutting down the amount of power your accessories take up, these underdrive pullies will free up almost 10-15hp, without sacrificing cooling and charging functionality! Installation normally takes about 30 minutes and full instructions are included.
Application. These underdrive pullies are for the 1996-2001 GT and 1996 to 1999 Cobra with a long water pump (bowed out face).
Technical Note: Midway through the production run for the 2001 model year Ford changed the design of the water pump on the 4.6L engine. The older style pump produced from 1996 to mid 2001 had a longer shaft. In January of 2001 the design of the pump was changed to a shorter shaft. This necessitated a change in the design of the pump pulley.
Click here to see pictures of the different pulley styles.
| Year/Model: | 96-00 GT & 96-99 Cobra | Manufacture: | BBK |
| Material: | Aluminum | Finish: | Polished |
| Crank Pulley: | Piggyback | SFI Certifited: | No |
|
BBK Underdrive Pulleys - Installation Instructions! |
![]() |
Underdrive Pulleys - Tech Article |
|
Mustang Underdrive Pulley Kit - Video Installation Instructions! |