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The Perm-Lok permanently engages the Central Axle Disconnect (CAD) system and couples both front axles permanently
the Clutch Masters conversion kit solves the problem by using a single mass steel flywheel that will handle more torque
Whether you're simply looking for a little more power to pull your fifth wheel
and crew cab trucks with or without the floor mounted 4x4 shifter
Large Bore-HD exhaust systems are the perfect combination of performance
Hamilton Cams 1.45" Cast Tappets 89-18 Dodge 5.9L/6.7L Cummins ARP-250-6302 The Perm-Lok permanently engages theWhen upgrading the cam in your Cummins to a Hamilton, its a good idea to upgrade your tappets with this kit from Hamilton. At 1. 45 they will not have interference with the fuel pump eccentric on 12 valve engines and are much wider than the 1. 1 tappets used in early 12 valve engines. This means they have more surface area to work with Hamilton's wider lobes,which will promote much better lobe life with todays low zinc oils.
