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Big Brake Kit

XYZ Racing Hollow Rear Brake Kit — Jeep GLADIATOR (JT) (2020-2026)

SKU: XYZ-BRK-BKR-JE-001-REAR

  • IncludesRear axle pair (2 discs + 2 calipers)
  • PositionRear
  • Disc Ø380–421 mm
  • Caliper pots8-pot
  • Lead time10–15 working days

Fits Jeep GLADIATOR (JT) (2020-2026)

Brake pad compound

Street: quiet, low-dust, strong cold bite for road driving. Sport: higher temperature range and more bite for fast road and occasional track. Racing: maximum fade resistance for sustained track use (noisier and dustier cold). Match the pad to how hard you actually brake.

Disc size

Caliper grade

Hollow is the standard caliper: a lighter hollow-body forged caliper with a dust cover and a 5-year warranty. Hollow Racing drops the dust cover for sustained high-temperature use (rated to 1000°C, 2-year warranty) — the track-grade choice.

Caliper colour

Painted colours are included. Polished-forged finishes are mirror-polished forged calipers (Titanium, Gold, Silver); candy colours are a deep, mirror-reflection paint. Both are premium upgrades — fuller detail further down the page.

Painted — includedTell us the exact Pantone (PMS) code you want the calipers painted.Polished forgedCandy
Disc style

Drilled discs (cross-drilled holes) vent gas and water and look aggressive; slotted discs (surface grooves) wipe the pad face clean and resist fade under sustained hard use. Same price — choose on looks or how you drive.

Centre bell

The centre bell is the CNC-machined aluminium hat that joins the disc to the hub. Standard anodized is included; a two-tone bell adds an anodized accent ring in your choice of colour; titanium is the lightest, forged option.

Carbon-ceramic rotor

Carbon-ceramic rotors are a special-order track upgrade: far lighter than steel, fade-resistant at extreme temperatures and extremely long-lived. The price follows the disc size you choose above. The standard two-piece steel rotor is included.

Configured price£3,200.00Inc. VAT

Lead time: 10–15 working days from payment


£3,200.00

Made to order. Full payment is taken at checkout. Production begins once payment is confirmed.

Pay by card, Apple Pay, Google Pay — or Klarna on eligible orders.

Caliper render for this kit:

XYZ Racing Hollow Rear Brake Kit — Jeep GLADIATOR (JT) (2020-2026) — 380 mm
380 mm

The Gladiator JT carries its mass differently to the Wrangler it shares a cab with. A bed full of payload, a trailer on the hitch, and the longest wheelbase in the midsize truck class all pile load onto the rear axle, and that is exactly where the factory braking runs out of thermal headroom first. This XYZ Racing rear brake kit for the Jeep Gladiator (JT) replaces the rear setup with larger, lighter two-piece floating discs and fixed calipers that hold their bite when the back of the truck is doing real work.

It is a kit aimed at owners who load the bed, tow, or descend long technical trails where rear-brake heat builds with nowhere to go. The hollow-vane rotors shed weight off the corner while opening up cooling, so repeat heavy applications do not turn into a soft pedal halfway down the hill.

What this big brake kit does for your 2020-2026 Jeep Gladiator (JT)

On a loaded Gladiator you feel the difference where it matters: a firmer, more consistent rear pedal under sustained braking and less fade when the truck is hauling weight. The larger discs run cooler than the standard rotors, which keeps the pad compound in its working window through repeated stops. Three pad compounds let you match the kit to use: Street for a daily-driven JT, Sport for harder fast-road and towing duty, and Racing for the most demanding heat loads. The result is shorter, more repeatable stopping distances from a truck that asks a lot of its rear axle.

About the Hollow Rear Brake Kit

The kit pairs a pair of two-piece floating discs with uprated rear calipers sized for the Gladiator’s mass. The hollow-vane rotor casting reduces unsprung and rotational weight while increasing the surface available to dump heat, the two things a heavy, load-carrying truck needs most from its rear brakes. The caliper is hollow-body as standard, with an optional Hollow Racing upgrade for the hardest use that drops the dust cover, is rated to 1000C and carries a two-year warranty. Caliper finishes are painted at no extra cost in Red, Yellow, Gold, Black or Anodized Black, with a Custom Color in any Pantone for £150 and premium polished-forged (Titanium, Polished Gold, Polished Silver) or candy (Candy Teal, Candy Blue, Candy Red, Candy Orange) options to suit the build. Discs come drilled or slotted at the same price, with two-tone anodized or titanium centre bells selectable at checkout. With Street, Sport, and Racing pad compounds available, the same hardware covers everything from a stock-height daily to a trail-focused or towing-heavy Gladiator.

Fitment for the Jeep Gladiator (JT) (2020-2026)

This kit is built for the JT-chassis Jeep Gladiator across the 2020 to 2026 model years. It fits the rear axle as a pair of calipers and discs and is configured for the Gladiator’s specific hub and rotor dimensions. Confirm your model year before ordering.

What buyers also search for

  • Jeep Gladiator JT rear big brake upgrade for towing and payload
  • Gladiator rear brake kit with reduced fade on long off-road descents
  • Jeep Gladiator JT two-piece floating rotors with Sport and Racing pad options
  • Rear brake kit for a 2020-2026 Gladiator without changing the front setup

Choose your pad compound and caliper colour and set yours up using the options above when you order.

What’s in the kit

Rear axle kit — supplied as a complete bolt-on assembly.

  • 2×Two-piece floating discs — 380–421 mm: you pick the exact diameter with the "Disc size" option
  • 2×Lightweight aluminium centre bells
  • 2×Forged aluminium calipers — 8-pot
  • 2×High-stiffness mounting brackets
  • 2×Braided stainless steel brake lines
  • 4×High-performance brake pads (1 set)
  • 1×Fitting hardware & tools pack

Parking brake: Retains your original (OE) handbrake.

Choosing your spec

Every kit is built to order around the choices you make above. Here is what each option actually changes, so you can spec yours with confidence.

Brake pads — Street, Sport or Racing

Every kit ships with a full set of high-performance pads; the compound is your call.

Street is the right default for fast-road driving — a strong, progressive cold bite with low noise, low dust and long disc life. Sport raises the working temperature and adds bite and fade resistance for hard road use and the occasional track day, while still behaving on a cold morning. Racing is a track compound built for sustained abuse: huge fade resistance and bite once heat is in it, at the cost of more noise and dust when cold. Match the pad to how hard you actually use the brakes — there is no benefit to a race pad that never gets up to temperature.

Caliper grade — Hollow vs Hollow Racing

Hollow is the standard caliper on every kit: a hollow-body forged caliper, lighter than a solid one, fitted with a dust cover and backed by a 5-year oil-leak warranty. For most fast-road and spirited track use it is all the caliper you need.

Hollow Racing is the track-grade upgrade. It runs the same hollow body but without a dust cover (so there is nothing to melt at sustained high temperature), uses a twin-metal piston that isolates heat travelling from the disc to the oil seal, and is rated to 1000°C. Available 330–356mm (rear). Warranty is 2 years on oil leaks and 10 years on appearance. Built for professional racing and repeated track days.

Hollow Racing caliper

Caliper colour & finish

Painted colours (Red, Yellow, Gold, Black, Anodized Black) are included at no cost. Want an exact match to your car? Custom Color (+£150) paints the calipers to any Pantone code you supply (15–20 day lead time).

Polished Forged finishes are the flagship: a forged caliper given a mirror-polished surface treatment that shifts colour with the viewing angle. Beyond the looks, the polished surface dissipates heat better, resists rust and stands up to the weather. Choose Titanium (neochrome, +£350), Polished Gold (+£300) or Polished Silver (+£250). They look their best paired with a titanium centre bell. Care: clean only with a dilute neutral cleaner or water.

Candy colours (+£200) use a deep candy-paint and polishing process for a mirror-reflection, boutique finish — pick Teal, Blue, Red or Orange (shown below right).

Polished forged caliper finishes
Candy caliper colours

Centre bells

The centre bell is the CNC-machined aluminium hat that joins the disc to the hub. The standard anodized centre bell is included. The Two-tone bell (+£200) adds an anodized accent ring — choose Red, Yellow, Orange, Purple or Silver right here at checkout. The Titanium centre bell (+£500) is a forged titanium bell (bolts not included) that finishes off the polished-forged look.

Two-tone anodized centre bells
Same car

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Front & rear brake kits, coilovers and more for this car