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.

Fitment:
Fits:
• JL Wrangler (2-door)
• JL Wrangler Unlimited (4-door)
• JT Gladiator (pickup)
• JK Wrangler (2-door)
• JK Wrangler Unlimited (4-door)
Specs:
• Minimum Wheel Diameter: 17”
• Back Spacing: 4.75” or less
• MUST VERIFY FITMENT W/ DOWNLOADABLE TEMPLATE
• Bolt Pattern: 5×5”
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
• JT front: 12.9” x 1.1” (330mm x 28mm) vented rotors
• JT rear: 13.6” x 0.86” (345mm x 22mm) solid rotors
• JK front and rear: 11.9” x 1.1” (302mm x 28mm) vented rotors (U.S.-spec)

Includes:
• Delta Brake Caliper Kit w/ Pads – High-Modulus – Front (# 4403401)
• Delta Brake Caliper Kit w/ Pads – High-Modulus – Rear (# 4403402)
• 14” x 1.25” Delta Brake Rotor Kit – Slotted & Vented – Front (5×5”) (# 4403455)
• 14” x 1.25” Delta Brake Rotor Kit – Slotted & Vented – Rear (5×5”) (# 4403456)
• All necessary hardware