All Front Brake Pads and Rotors jobs
Front Brake Pads and Rotors
2011–2018 Ram 1500 - 5.7L V8 / EZH / HEMI
Front brake pads and rotors on a 2016 Ram 1500 5.7L HEMI. You're looking at 1–2 hours, a 3-ton jack stand minimum, and some moderately seized rotors if this truck lives anywhere damp. Doable in a driveway if you have the right sockets and a little patience with rusty hardware.
How Rough Is This Going to Be? Know what you're getting into.
This is an intermediate job that demands respect for torque specs and piston geometry. You've got dual-piston calipers that will spit out one piston if you compress only the other one. The 21mm bracket bolts are factory-torqued to 130 ft-lbs and often have threadlocker on them—expect resistance. The slide pins torque to 31 ft-lbs (2015+), and you must hold the pin flats with a 17mm wrench or you'll spin forever without tightening anything. Rotor hubs corrode aggressively to the 77.8mm pilot, so cleaning and anti-seize matter.
Save Another Trip to the Parts Store Clips, seals, fluids, and the little stuff people forget.
Pump the brake pedal 3–5 times before you move the truck or you'll have zero brakes on initial pedal press. Remove some brake fluid from the reservoir before you compress the pistons or it'll spill everywhere. Clean the packaging oil off new rotors with brake cleaner before they touch the hub. And before you jack up the truck, loosen the lug nuts while it's on the ground—factory torque is real.
Here's Where It Gets Greasy The procedure, pain points, and common ways this job fights back.
Hanging the caliper by the brake hose will rupture internal hose cords and cause a slow leak you won't find until the pedal is on the floor. Forgetting to pump the pedal before driving is a close second—you'll think the brakes are dead because the pedal goes straight to the floor. Under-torquing the 21mm bracket bolts or the 13mm slide pins creates movement and noise. And if you install new rotors covered in shipping grease, your new pads are already contaminated.
Procedure
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1
Front Wheels and Lug Nuts
Loosen front wheel lug nuts slightly while truck is on the ground, then raise the front end and support securely on heavy-duty jack stands. Remove front wheels.
Never work under a truck supported solely by a hydraulic jack.
Check brake fluid reservoir under hood and remove a small amount of fluid if near MAX to prevent overflow when pistons are retracted.
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2
Front Caliper Slide Pin Bolts
Remove the upper and lower 13mm caliper slide pin bolts while holding the slide pin flats with a 17mm open-end wrench.
If the slide pin sleeve spins inside the rubber boot, use the 17mm wrench to prevent tearing the boot.
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3
Front Brake Caliper Assembly
Lift the brake caliper off the bracket and support it using a caliper hanger or bungee cord hooked to the upper control arm or coil spring.
Do not allow the heavy dual-piston caliper to hang by the rubber flexible brake hose.
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4
Brake Pads and Hardware
Remove the worn inner and outer brake pads and stainless abutment clips from the caliper mounting bracket.
Note the orientation of any pad wear indicators (squealer tabs) prior to removal.
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5
Caliper Mounting Bracket
Remove the two 21mm caliper mounting bracket bolts from the back of the steering knuckle and remove the bracket.
These bolts are factory torqued to 130 ft-lbs and often have factory threadlocker; use a 1/2-inch breaker bar.
Turning the steering wheel towards the side you are working on improves tool clearance for the breaker bar.
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6
Front Brake Rotor
Remove the old brake rotor from the wheel hub. If seized with rust, strike the rotor hat firmly between studs with a dead-blow hammer.
Do not strike the wheel studs with the hammer.
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7
Wheel Hub and Bracket Abutments
Thoroughly clean rust scale from the wheel hub mounting flange and the caliper bracket pad abutment channels with a wire brush. Apply a light film of anti-seize to the hub face.
Do not get anti-seize or grease on wheel stud threads or rotor friction surface.
A smooth, clean hub surface prevents lateral runout and brake pulsation.
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8
New Front Brake Rotor
Clean packaging oil off the new brake rotor using brake cleaner, install the new rotor onto the hub, and secure it temporarily with one inverted lug nut to keep it flat.
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9
Caliper Mounting Bracket
Apply a drop of medium blue threadlocker to the 21mm bracket bolts. Reinstall the caliper mounting bracket and torque the bolts to 130 ft-lbs (176 Nm).
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10
Abutment Clips and New Brake Pads
Install new stainless abutment clips onto the bracket. Apply a light layer of brake lubricant to the clip slide channels. Install new inner and outer brake pads into the bracket.
Ensure zero lubricant touches the pad friction surface or rotor face.
Verify pads slide freely in the bracket clips without binding.
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11
Caliper Dual Pistons
Compress both caliper pistons back into the caliper housing simultaneously using a dual-piston compressor or C-clamp across an old brake pad. Inspect rubber dust boots for tears.
Compressing only one piston at a time will force the opposite piston out.
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12
Caliper Slide Pins and Boots
Slide out the slide pins, clean old grease, inspect boots, lubricate with high-temp silicone brake grease, and reinstall into bracket.
Use only silicone or polyalphaolefin-based brake grease; petroleum grease swells rubber boots.
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13
Front Caliper Slide Pin Bolts
Position the caliper over the new pads and bracket. Install the two 13mm slide pin bolts and torque to 31 ft-lbs (42 Nm) while holding pin flats with 17mm wrench.
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14
Front Wheels and Lug Nuts
Remove temporary lug nut, reinstall front wheels, and hand-thread lug nuts. Lower vehicle to the ground and torque lug nuts in a crisscross pattern to 130 ft-lbs.
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15
Hydraulic Brake System
Pump the brake pedal firmly 3 to 5 times until pedal is firm before starting the vehicle. Check and top off brake fluid reservoir level in the engine bay.
CRITICAL: Failing to pump brake pedal before driving will result in complete loss of initial braking power.
Perform a gentle bedding procedure avoiding hard panic stops for the first 30 to 50 miles.
Gotchas
- The 13mm caliper slide pin bolt threads directly into a free-floating guide pin sleeve; you must hold the 17mm flats on the sleeve with an open-end wrench or the pin will spin infinitely without loosening or torquing.
- The front calipers are dual-piston. If you try to compress one piston with a standard C-clamp without bridging both pistons (or without an old brake pad across the face), the hydraulic fluid will pop the adjacent piston out of its bore.
- 2015+ 4th Gen Ram 1500 trucks have an updated slide pin torque specification of 31 ft-lbs, compared to 24 ft-lbs on 2009-2014 models. Caliper bracket bolts remain 130 ft-lbs across all years.
- Rotors frequently seize onto the 77.8mm hub center pilot from galvanic corrosion. Aggressive cleaning of the hub face and a light anti-seize application on the hub pilot are necessary to avoid runout/pulsation.
Common mistakes
- Forgetting to pump the brake pedal before shifting into gear after piston compression, causing an initial pedal drop to the floor and no braking action.
- Letting the heavy two-piston caliper hang by the rubber brake hose, damaging internal hose cords or causing a hydraulic leak.
- Under-torquing the 21mm caliper bracket mounting bolts (130 ft-lbs required) or failing to clean old threadlocker from bolt threads.
- Failing to clean shipping preservative oil off new non-coated brake rotors before installation, contaminating the new brake pads instantly.
It's a Good Idea To... Greasy tips and useful while-you're-in-there advice.
When you remove the slide pin bolts, hold the pin sleeve steady with that 17mm wrench or the whole assembly spins inside the rubber boot and tears it. It looks like the bolt isn't moving, but the pin is just rotating helplessly in its bore. Also, use an old brake pad or flat plate bridging *both* pistons when you compress the caliper—not one. Dual pistons need simultaneous pressure.
You Already Have a Screw Loose. Your Car Shouldn't. Final checks before you call it done.
This isn't a one-wrench job—you need both torque wrenches, a dual-piston compressor, and serious respect for the fastener torque specs. Get it right and you'll have solid, quiet brakes. Overlook the small stuff and you'll be back here in three months chasing vibration or noise. Take your time, clean that hub, and pump the pedal.