This Timbren spacer kit for GMRS15 adapts a Timbren SES rear assembly to lifted Chevy Silverado 1500 and GMC Sierra 1500 trucks with approximately 5.75"–7.25" of frame-to-axle gap. Each kit ships with two 1-inch and two 1/2-inch spacers plus the necessary hardware so you can mix spacers to achieve the desired ride height. The kit enables effective use of the GMRS15 SES helper springs on lifted pickups.
Timbren SES Spacer Kit (Use w/ PN GMRS15 )