Timbren SES Helper Spring Kit Stock Height Rear - Rubber - GM Fullsize Truck 1999-2012 Locking Wire (4) Vacuum Ports " (1)

(4) Vacuum Ports " (1) Each 1/4 NPT & 3/8 NPT & (2) 1/8 NPT w/ Indirect Baffled Signal

OEM / Edelbrock

1983-1984 Mercedes-Benz 300TD

7/16" base thread diameter and 1

Timbren SES Helper Spring Kit Stock Height Rear - Rubber - GM Fullsize Truck 1999-2012 Locking Wire (4) Vacuum Ports " (1)Product Description: Helper Spring Kit SES Stock Height Hardware Included Rear Rubber Black GM Fullsize Truck 1999 2012 Timbren was founded in 1965 to advance the ride quality of trucks while towing. Today they manufacture suspension enhancement systems for towing, rubber helper springs, and full trailer suspensions designed for both on and off road uses.