ATI Performance Products Clutch Drum HLN Diesel Heaters one 52” Curved Lightbar

one 52” Curved Lightbar

closest to the rear of the vehicle

4L Zetec SE - 1

Sierra Classic 1987 - 1991 GMC V1500 Suburban Base 1987 GMC V1500 Suburban High Sierra 1987 - 1989 GMC V1500 Suburban Sierra Classic 1990 GMC V1500 Suburban SLE 1987 GMC V2500 Base

SE 2008 Dodge Durango SLT Plus 2004 - 2009 Dodge Durango SLT

ATI Performance Products Clutch Drum HLN Diesel Heaters one 52” Curved LightbarATI's aluminum drums are made of treated T 6 aircraft aluminum, eliminating the need for steel bushings and sleeves that can expand under heat and come loose, ultimately causing transmission failure. The Aluminum Advantage! Remember! The forward drum rotates at engine RPM at all times. The direct drum goes from spinning twice engine RPM in low gear to stopped on the 1 2 gear change and stopped to engine RPM on the 2 3 gear change. Aluminum weighs one