The TeraFlex Delta Brake System is the ultimate upgrade for Jeeps with oversized and heavier wheels/tire combos requiring increased braking performance. A must for 33-42” tires or heavy-laden overland rigs.
The TeraFlex Delta Brake System is the ultimate upgrade for JL and JK Wrangler/Unlimited and JT Gladiator models with oversized and heavier wheels/tire combos requiring increased braking performance. A must for 33-42” tires or heavy-laden overland rigs. Includes all the components required to upgrade both front and rear axles. 
Delta Brake Calipers feature a high-modulus bridge. Modulus measures a material’s resistance to elastic (recoverable) deformation under load. A stiff material has a high modulus, which means it only changes shape slightly under high elastic loads before returning to its normal shape. 
Fits:
• JL Wrangler (2-door) 
• JL Wrangler Unlimited (4-door) 
• JK Wrangler (2-door) 
• JT Gladiator (pickup) 
• JK Wrangler Unlimited (4-door)
• Minimum Wheel Diameter: 17” 
• Back Spacing: 4.75” or less 
• MUST VERIFY FITMENT W/ DOWNLOADABLE TEMPLATE 
• Bolt Pattern: 8x6.5” 
Includes:
• High-Modulus Brake Caliper Kit w/ Pads – Front (# 4403401) 
• High-Modulus Brake Caliper Kit w/ Pads – Rear (# 4403402) 
• 14” X 1.25” Vented & Slotted Rotors w/ 8x6.5” – Front (# 4403485) 
• 14” X 1.25” Vented & Slotted Rotors w/ 8x6.5” – Rear (# 4403486) 
• All necessary hardware 
Features & Benefits:
Delta Brake System:
• Significantly improved braking performance over factory brake system 
• 100% bolt-on upgrade w/ basic hand tools 
• Balanced front to rear brakes tuned specifically for lifted vehicles 
• Brake bias and piston sizes optimized for JL and JK Wrangler/Unlimited and JT Gladiator models 
• Designed to work w/ stock proportioning valve and ABS 
• 3-year warranty 
• For more Features & Benefits, please see Delta High-Modulus Brake Caliper Kit w/ Pads – (Front: # 4403401 & Rear: # 4403402), Delta 14” x 1.25” Vented & Slotted Rotor Kit w/ 8x6.5” – (Front: # 4403485 & Rear: # 4403486), and Delta Semi-Metallic Brake Pads – Front or Rear (# 4403403)
Stock Brake Rotor Reference:
• JL Sahara/Rubicon front: 12.9” x 1.1” (330mm x 28mm) vented rotors 
• JL Sahara/Rubicon rear: 13.4” x 0.55” (342mm x 14mm) solid rotors 
• JL Sport front: 12.9” x 0.94” (330mm x 24mm) vented rotors 
• JL Sport rear: 12.9” x 0.47” (328mm x 12mm) solid rotors 
• JK front and rear: 11.9” x 1.1” (302mm x 28mm) vented rotors (U.S.-spec)
Note(s):
• Requires a minimum wheel diameter of 17”. 
• On JK models, we recommend upgrading the stock master cylinder and brake booster to the Mopar Master Cylinder & Brake Booster Kit (# P5160050). Contact your Mopar dealer for availability. 
Install Time: 4 Hours
Available Configurations:
• Delta Brake System – Front & Rear – 8x6.5” (# 4403480) 
• Delta Brake System – Front & Rear – 5x5” (# 4403450)
• Delta Brake Kit – Front – 8x6.5” (# 4403481) 
• Delta Brake Kit – Front – 5x5” (# 4403451)
Delta Replacement Parts:
• High-Modulus Brake Caliper Kit w/ Pads – Front (# 4403401) 
• High-Modulus Brake Caliper Kit w/ Pads – Rear (# 4403402)
• 14” x 1.25” Vented & Slotted Rotor Kit w/ 8x6.5” – Front (# 4403485) 
• 14” x 1.25” Vented & Slotted Rotor Kit w/ 8x6.5” – Rear (# 4403486) 
• 14” x 1.25” Vented & Slotted Rotor Kit w/ 5x5” – Front (# 4403455) 
• 14” x 1.25” Vented & Slotted Rotor Kit w/ 5x5” – Rear (# 4403456) 
• Semi-Metallic Brake Pads – Front or Rear (# 4403403)