Looking for aftermarket parts to modify or upgrade your GMC R3500 with pulleys - crank, underdrive? At Tunersports.com we carry a huge selection of the top name brand performance pulleys - crank, underdrive parts and accessories for your R3500.
Whether you have a 1987 or 1991 GMC R3500 in Base to SLE trim we have you covered. We have 2 pulleys - crank, underdrive available to mod your R3500. All parts have free shipping to the Continental US 48 States.
 IN STOCK 1598Install a set of BBK performance underdrive pulleys and see an average of 8-15 additional horsepower over the stock pulleys. Under drive pulleys increase engine output by reducing the draw of the engines accessories by slowing them down and reducing the HP they use. Additional and significant perfor... BBK 85-97 GM Truck 305 350 Underdrive Pulley Kit - Lightweight CNC Billet Aluminum (3pc) 1987-1987 GMC R3500 Base / High Sierra / Sierra Classic $279.99 CLEARANCE VIEW PRICE IN CART |
 IN STOCK - LOW 1603Install a set of BBK performance underdrive pulleys and see an average of 8-15 additional horsepower over the stock pulleys. Under drive pulleys increase engine output by reducing the draw of the engines accessories by slowing them down and reducing the HP they use. Additional and significant perfor... BBK 88-95 GM Truck 4.3 5.0 5.7 Underdrive Pulley Kit - Lightweight CNC Billet Aluminum (3pc) 1988-1989 GMC R3500 High Sierra / Sierra Classic 1988-1991 GMC R3500 Base 1990-1991 GMC R3500 SLE $279.99 |