2007-2013 LS Truck 8 Rib Drive Conversion Kit with Std. Dia. Harmonic Balancer

2007-2013 LS Truck 8 Rib Drive
Conversion Kit with Std. Dia. Balancer

Part# 1021
Only $1080.00
8 Rib Drive Conversion Kit with Standard Diameter Balancer for 2007-2013 LS Truck without Electric Power Steering. Conversion kit includes:
18628-Rib Drive - Standard Diameter Damper
11031LS1 F-BODY / GTO / 07-14 LS Truck 8-Rib Alternator Pulley
1979LS Truck 8-Rib P/S Pulley
19718-Rib LS Truck Large Smooth Idler Pulley
1973GM 8-Rib Ribbed Tensioner Pulley
Any additional aftermarket pulleys must be sourced from the manufacturer of those pulleys. Includes SFI 18.1 Harmonic Balancer.

Note: Conversion kit will not fit trucks with optional Electric Power Steering.



  • Dual Keyway Option - Add $20.00
    Add dual keyways for Supercharged or Extreme Duty Applications. Requires double keyed crankshaft snout.
  • Blower Hub Option - Add $25.00
    The super duty hub has increased material for supercharged applications.This increased material helps to protect the hub from cracking in high load applications. The super duty hub is recommended for supercharged applications making over 750 rwhp. Includes matching timing cover oil seal.


  • Exceeds SFI 18.1 standards and is marked on front with SFI Sticker, and on the rear with SFI number stamped into unit.