Chassis and Running Gear
Trailer and Van Disc Brake Service: Pads, Rotors and Calipers
Typical range
$350 to $2,500
Shop hours
1 to 10
Labor rate
$260/hr
The short answer
Disc brake service covers pad and rotor replacement, caliper rebuild and replacement, hose inspection, and fluid service on trailers and van chassis. Work runs $350 to $2,500, or 1 to 10 hours at $260 per hour plus parts, at our Yorba Linda facility.
01
What this work actually involves
Disc brakes on trailers and van chassis fail differently than drum brakes, and the failure that dominates in Southern California is caliper seizure from corrosion. Coastal salt film gets into the slide pins and the piston boot, the pin binds, and the caliper stops releasing fully. From there the inboard pad wears at twice the rate of the outboard, the rotor gets a heat-checked surface, and the wheel runs hot enough to cook a bearing. We check pad thickness inboard and outboard separately for exactly this reason, because equal wear and unequal wear point at completely different repairs.
Rotor measurement is the other thing that gets skipped elsewhere. A rotor has a minimum thickness stamped on the hat and a runout specification, and a rotor that is within thickness can still be out of specification for lateral runout, which is what you feel as pulsation. Turning a rotor that is already near minimum to remove runout buys a few thousand miles of quieter braking and then fades badly on the first sustained descent. We measure both and tell you which you have.
Hydraulic condition matters more on vehicles that sit. A fleet van that runs daily flushes its own fluid through use. An RV or a trailer that sits eleven months a year accumulates moisture in the fluid, which lowers the boiling point and corrodes the caliper bore from the inside. On any unit that has sat, we test the fluid rather than assume, because brake fade on the 15 coming off the Cajon Pass is not the place to discover that the fluid absorbed water in storage.
Location: All work is performed at our Yorba Linda facility. We do not offer mobile, roadside, or fleet route service.
02
What the job includes
- Pad thickness measurement inboard and outboard at each wheel
- Rotor thickness and lateral runout measurement against specification
- Brake pad and rotor replacement
- Caliper rebuild, slide pin service, and complete caliper replacement
- Caliper bracket and hardware replacement including clips and shims
- Brake hose inspection for swelling, chafe, and internal restriction
- Brake fluid testing for moisture content and full fluid exchange
- Parking brake cable adjustment and replacement where fitted
- Corrosion treatment at caliper mounting and slide surfaces
- Post-service bedding procedure and brake performance verification
03
When you need this service
- A pulsation through the pedal that increases with braking effort
- Squealing or grinding that changes when the brakes are applied
- One wheel running noticeably hotter than the others after a drive
- A vehicle that pulls to one side under braking
- Visibly uneven pad thickness between the inboard and outboard side
- A brake pedal that sinks slowly under steady pressure
- Brake fade after a long descent that recovers once the brakes cool
04
How we do it, step by step
- 01
Road and static assessment
Brakes evaluated for pull, pulsation, and noise, then each wheel pulled so pad and rotor condition can be measured instead of estimated through the wheel.
- 02
Measurement against specification
Pad thickness taken inboard and outboard separately, rotor thickness and lateral runout measured, and the numbers compared against the published limits.
- 03
Caliper and hardware inspection
Slide pins worked, boots inspected, and piston retraction checked. Uneven pad wear is a caliper finding until proven otherwise, particularly on coastal units.
- 04
Fluid condition test
Fluid tested for moisture content, which matters most on vehicles that sit for long periods between use rather than on daily drivers.
- 05
Documented findings and pricing
Measurements photographed and priced per corner so you approve specific work rather than a blanket four-wheel job you may not need.
- 06
Service and replacement
Pads, rotors, hardware, and calipers replaced as measured, slide surfaces cleaned and lubricated correctly, and fluid exchanged where the test calls for it.
- 07
Bed-in and verification
Brakes bedded to the pad manufacturer procedure and the vehicle checked for even braking and normal hub temperature before delivery.
05
Pricing and posted rates
| Item | Rate or range | Notes |
|---|---|---|
| Typical job range | $350 to $2,500 | Varies with extent of damage and parts availability |
| Shop hours | 1 to 10 | Quoted after teardown, not before |
| Mechanical and electrical labor | $260 per hour | 2026 posted rate |
| Parts | 100% markup under $100, 35% over | Special order parts require a non refundable deposit at order |
| Deposit | 50% at authorization over $2,000 | Additional 25% when parts arrive on jobs over $10,000 |
| Sales tax | 7.75% on parts and materials | Labor is not taxed |
Insurance billed jobs may be billed at carrier negotiated labor rates that differ from the posted retail rates above. See all posted rates.
07
Vehicles we do this work on
Vehicle
Sprinter Vans
Mercedes Sprinter vans run last-mile routes, trade service, and camper conversions across Southern California. Sliding door tracks
Vehicle
Cargo Vans
Cargo vans on Transit, ProMaster, Express, and Sprinter platforms carry trade tools, parts inventory, and route freight. Rear door
Vehicle
Box Trucks
Box trucks put a separately built cargo body on a cab chassis, and the joint between them is where most failures start. Rear frame
Vehicle
Travel Trailers
A travel trailer tows from a ball hitch behind the tow vehicle rear axle on an A-frame tongue, which makes it the most sway-prone
Vehicle
Standard Fifth Wheels
A fifth wheel couples to a hitch in the truck bed through a kingpin and pin box, with a raised forward bedroom over the truck. The
Vehicle
Utility Trailers
A utility trailer is an open deck on a welded frame with fenders, a ramp gate, and lighting, and it fails through deck rot, frame
Vehicle
Electric Delivery Vans
Electric delivery vans including the Rivian EDV used by Amazon Logistics have a floor-mounted battery pack, bonded composite body
08
Questions about brake service, pad rotor and caliper
Frequently asked questions
How much does disc brake service cost?
Disc brake work runs $350 to $2,500, or 1 to 10 hours at $260 per hour plus parts. Pads and rotors at one axle sits near the low end. Pads, rotors, both calipers, hoses, and a full fluid exchange across two axles on a heavy van chassis sits at the high end. Parts are billed at markup, 35 percent over $100.
Why is my inboard pad worn out and the outboard one fine?
A seized or dragging caliper. The slide pins have bound, usually from corrosion, so the caliper is not releasing and the inboard pad carries the load continuously. Coastal Southern California accelerates this badly. Replacing pads without servicing or replacing the caliper puts you right back in the same place in a few thousand miles.
Should rotors be turned or replaced?
It depends on measured thickness. A rotor with plenty of material above minimum and a small runout error can be turned. A rotor already near minimum should be replaced, because turning it further leaves too little mass to absorb heat and it will fade on the first long descent. We give you the actual measurement and the limit.
My RV sat for two years. Does the brake fluid need attention?
Very likely. Brake fluid absorbs moisture from the air over time, which lowers its boiling point and corrodes caliper bores from the inside. A vehicle that sits does not flush itself through use the way a daily driver does. We test moisture content rather than guessing, and the test takes minutes.
09
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More chassis and running gear work
Ready to move on brake service, pad rotor and caliper? Bring it to Yorba Linda.