"Pro Tree" Instant Reaction Trans Brake Kit w/ Clean Neutral - PR/N123N

"PRO TREE" INSTANT REACTION TRANS BRAKE KIT W/ CLEAN NEUTRAL (PR/N123N)

REQUIRES P08-408/P08-458 SHIFTER (MUST BE USED WITH BILLET ALUMINUM DIRECT DRUM COA-22814/COA-22815)

The Coan Racing COA‑22024 “Pro Tree” Instant Reaction Trans Brake Kit with Clean Neutral (PR/N123N) is a high-performance hydraulic upgrade specifically tailored for Turbo-Hydramatic 400 transmissions. Crafted to Coan’s meticulous standards, this kit converts your valve body layout to a reversed shift pattern (PR/N123N), enabling instant reaction trans brake control in first gear while providing a “clean neutral” safety position to ensure complete disengagement when parked.

To achieve accurate shift positioning and reliable operation, installation requires pairing with Coan’s P08-408 or P08-458 shifter and using a billet aluminum direct drum (COA‑22814 or COA‑22815) that incorporates a 34-element sprag or Super Sprag clutch assembly. The kit comes with a precision-machined valve body, solenoid and O-ring, manual selector valve, brake valve with spring, 16 direct clutch springs, and a heavy-duty accumulator spring, all engineered for firm line pressure and instant engagement under demanding drag conditions.

Installation involves replacing your stock valve body and separator plate, discarding check balls and factory shift parts, installing the solenoid and upgraded springs, and assembling the required direct drum and clutch packs. The kit fits into the original OEM bolt pattern and includes wiring instructions and mounting gear for proper solenoid and shifter integration. The result is a clean, compact, user-controlled trans brake system that prevents reverse engagement during staging, delivers lightning-fast response, and provides a neutral safety position for added peace of mind.

Replacement Parts For COA-22024:

• Separator Plate - CCP-0220590D
• Manual Selector Valve - CCP-0220730
• Trans Brake Solenoid - COA-22040
• Pro Tree Trans Brake Valve & Spring - COA-22041A
• Trans Brake Spring Kit - COA-22042
• Reverse Servo Spring - COA-22043
• Modulator, Solenoid, Case Connector O-Ring - COA-22163