Core Charge Hold: This part includes a $1575.00 refundable core charge hold added at checkout, fully refunded when you return your old part.

When you purchase a BD transmission and torque converter package, you are getting a matched set that has been dyno tested together for ultimate performance, and reliability. Every transmission comes with BD's own Heavy Duty pan that adds extra fluid capacity. For towing, street or track, when it comes to a dependable transmission that will stand up to your diesel's power and torque demands, the clear choice is BD.

Towmaster Transmission Kit; Incl. 4R100 Trans/Torque Converter/Input Shaft/Heavy Duty Trans. Pan/Reworked Front Pump/Re Calibrated Accumulator Body;

• Drilled and tapped direct and intermediate feeds to prevent leaks at case
• 1990-2003 include auxiliary frame mounted full flow filter kit
• Torque Converter: Enhanced Stall - Street/Towing applications
• Full shift kit with line mod valve to increase pressures
• Added lube and support to output and intermediate shafts
• Transmission: Increase the durability of your drivetrain
• Clutch Count: INTERMEDIATE 4 (33% increase over stock)
• BD aluminum HD deep pan, increases oil capacity by 6qt
• Clutch Count: LOW REVERSE 7 (17% increase over stock)
• Clutch Count: OVERDRIVE 4 (33% increase over stock)
• Up to triple the amount of lock-up clutch material
• Clutch Count: FORWARD 5 (25% increase over stock)
• Lower rpm response than the stock converter
• Enhanced Stall - Street/Towing applications
• Torque multiplying cast aluminum stators
• Less heat and better fuel economy
• Each transmission is dyno tested
• Added lube circuits to OD planet
• Increased pressure to converter
• Stamp-forged steel front cover
• Re-calibrated accumulator body
• Clutch Count: COAST CLUTCH 2
• Fully rollerized geartrain
• More efficient operation
• Machined center support
• Billet 300M input shaft
• Clutch Count: DIRECT 5
• Quicker, firmer shifts
• Upgraded OD snap ring
• Reworked front pump
• Furnace-brazed fins

Vehicle Fitment