Billet Steel Front Drum, Aluminum Piston for A618 (47RE, 48RE)

The billet steel front drum and extra large billet aluminum piston for Chrysler A618 (47RE and 48RE) transmissions is made for performance Dodge diesel applications from AIAI/SAE 1040-1045 medium-carbon machinery steel. No cast iron in this part!

Features include the following:

• Stronger, more reliable and safer than OEM cast-iron drum and longer-lasting than aluminum drum
• Ideal for street use
• Holds up to 6 friction plates versus 4 in the OEM unit
• 55% MORE piston apply surface area, results in double the clamping force needed in third gear
• Engineered with dual oil apply passages for even piston apply
• Comes with a precision CNC-machined billet aluminum piston