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.

WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/product 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 all JL, JK, and JT models
- Designed to work w/ stock proportioning valve and ABS
- 3-year warranty
Calipers:
- Opposed 4-piston calipers w/ 2'' front and 1.375'' rear pistons
- Same flow rate as factory 2-piston calipers ''" 4 pistons move each side half the distance instead of 2 pistons only moving 1 side the full distance
- EPDM synthetic boot material keeps water and other contaminants away from piston
- Hard-chrome coating on piston reduces friction to improve performance
- 4-piece High-Modulus bridge caliper design combines heat-treated 4140 cast steel bridges w/ 6061-T6 forged aluminum piston housings
- Steel bridges resist bending/flex better than standard aluminum or cast iron
- Improved stiffness = consistent brake feel/modulation during brake application and release
- Low-profile bridge accepts 14'' diameter rotors behind 17'' wheels
- 1,000-hour salt spray tested zinc- and E-dipped coating on bridges and mounts
- 300,000 psi steel formed hardware
- Built-in auto bleeding check ball, valve, and spring for easy bleeding
- Hard-coat anodized, scratch-resistant piston bores
Rotors:
- Massive 14'' x 1.25'' vented rotors offer more mechanical advantage for superior stopping performance
- Heat-treated, heavy cast-iron rotors offer better heat absorption
- Mill-balanced, slotted and vented rotors offer maximum gas and heat dissipation, respectively, compared to solid rotors
- GEOMET coating on non-friction surfaces resists corrosion
Pads:
- Proprietary composite-resin, semi-metallic pads provide excellent full temperature stopping power for maximum initial speed scrub w/ increased pad life and reduced noise and dust
- Drop-in pad design ''" no need to disassemble calipers to replace pads,fitment_info=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: 8x6.5''
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),height=15.5,installation_time=4 Hours,installation_video=https://www.youtube.com/embed/Zadgu69oIjM,https://www.youtube.com/embed/XRkAnIV22pE,length=30,product_image_size=Default,product_notes=- Requires a minimum wheel diameter of 17''.,sw_featured=No,width=15