Manton Duramax 6.6L - Pressure Tower Valve Spring Kit (32 Springs, 32 Retainers, 32 Spring Cups, 64 Locks) Air Bags & Compressors 2001-2010 Chevy GMC 2500/3500 when traveling at such speeds

when traveling at such speeds that would cause the ECM to cycle the lock-up clutch in and out

Gray Diamond European Spec meets the requirements for many European manufacturers

The washers are not needed after install – they can be thrown away or kept for possible future use if desired

the Unfinished trim is recommended

Manton Duramax 6.6L - Pressure Tower Valve Spring Kit (32 Springs, 32 Retainers, 32 Spring Cups, 64 Locks) Air Bags & Compressors 2001-2010 Chevy GMC 2500/3500 when traveling at such speedsManton Performance Valve Spring Kit Fits 2001 2016 6. 6L Duramax Part# D 105 KIT DMAX Includes: Conical Valve Spring Set Billet Steel Retainer Set Chromoly Spring Seat Set Valve Lock Set