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Big Stopping Power for Classic Ram Trucks
This Rotora HD Challenge kit replaces the front brakes on 2011-2019 Ram 1500 Classic (DS chassis) trucks with a serious 6-piston setup built for towing, hauling, and heavy daily use. The 390x36mm 2-piece rotor sheds heat far better than the factory single-piece disc, cutting fade during hard stops with a loaded bed or trailer. Every kit ships as a complete bolt-on system with pads, lines, and hardware so the truck is ready to drive as soon as it comes off the lift.
Key Features
- Rotora RG608 6-piston front caliper
- 390x36mm 2-piece directional rotor
- Heat-treated, zinc-plated disc face for corrosion resistance
- HD floating drive hardware for consistent rotor centering
- HD graphite-metallic brake pads included
- Stainless steel braided DOT-compliant brake lines
- S45C steel caliper mounting brackets
- Available in 10 caliper colors
- Direct bolt-on fitment, no cutting or drilling required
- Choice of slotted or drilled rotor face
Fitment
| Year Range | Make | Model |
|---|---|---|
| 2011-2019 | Ram | 1500 |
Specifications
| Detail | Value |
|---|---|
| Part Number | HDK.DS-390x36.01 |
| Axle | Front |
| Caliper Type | 6-Piston RG608 |
| Rotor Size | 390x36mm |
| Rotor Construction | 2-Piece Directional |
| Bell Hat Material | S45C Steel |
| Disc Options | Slotted (S) or Drilled (X) |
| Pad Type | HD Graphite-Metallic, Included |
| Brake Lines | Stainless Steel Braided, DOT Compliant |
| Chassis | DS (Classic) |
| UPC | N/A |
What's Included
- Pair of RG608 6-piston calipers
- Pair of 390x36mm 2-piece rotors
- HD graphite-metallic brake pads
- S45C caliper mounting brackets
- Stainless steel braided brake lines
- All mounting hardware
About Rotora
Rotora designs and manufactures big brake kits and performance rotors for street, tow, and track applications. Every HD Challenge kit is engineered around a two-piece rotor design and a heavy-duty caliper to handle the added weight and stress of full-size truck use, while keeping installation straightforward for a home garage or professional shop.
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FAQ
What is the HDK.DS-390x36.01?
The HDK.DS-390x36.01 is the Rotora HD Challenge front big brake kit built for the 2011-2019 Ram 1500 Classic. It pairs a 6-piston RG608 caliper with a 390x36mm 2-piece rotor for improved heat capacity and stopping power over the stock front brakes.
Will this kit fit a 2015 Ram 1500 Classic with factory 17 inch wheels?
Wheel clearance depends on the inner spoke design, not just diameter. Most 17 inch and larger truck wheels clear this kit, but we recommend checking the wheel's inner barrel dimensions against the caliper profile before ordering.
Does this kit work with the factory ABS system?
Yes. The kit retains the stock ABS sensor and tone ring, so the factory anti-lock braking system continues to function normally after installation.
What is the difference between slotted and drilled rotors?
Slotted rotors clear gas and debris from the pad surface and hold up well under sustained heavy loads. Drilled rotors offer similar cooling benefits with a different look, though they see slightly more wear under extreme towing duty.
Do I need new pads with this kit?
No. HD graphite-metallic pads matched to the rotor and caliper are included in every kit, so there is nothing extra to buy for the initial installation.
Can I run this kit on a truck used for towing?
Yes. This kit is specifically built for the added mass and heat load of towing and hauling, with a larger rotor and stronger caliper than the factory front brakes.
Will my factory brake lines work with this kit?
New stainless steel braided DOT compliant lines are included with the kit and are recommended for use with the new calipers instead of reusing the factory rubber lines.
What caliper colors are available?
This kit is available in 10 caliper finishes including zinc, red, orange, yellow, green, light blue, blue, silver, black, and white.
Installation Instructions
- Raise and support the front of the truck, then remove the front wheels.
- Remove the factory caliper, bracket, and rotor from each front hub.
- Install the included S45C caliper bracket onto the factory hub using the provided hardware.
- Mount the new 390x36mm 2-piece rotor onto the hub.
- Install the RG608 caliper and included HD graphite-metallic pads onto the bracket.
- Connect the new stainless steel braided brake line to the caliper and existing hard line.
- Bleed the brake system at each caliper until fluid runs clear of air.
- Reinstall the wheels, torque to spec, and bed in the new pads with gradual stops before normal driving.
WARNING: This product can expose you to chemicals including brake dust, which are known to the State of California to cause cancer. For more information, visit www.p65warnings.ca.gov.
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