Wilwood Superlite 4R Rear Drum-to-Disc Brake Kits 140-17542-DR

Name: Wilwood Superlite 4R Rear Drum-to-Disc Brake Kits
Brand: Wilwood Disc Brakes
SKU: WIL-140-17542-DR
Price: 2299.11 USD
Availability: InStock
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Part Number: WIL-140-17542-DR

$2,299.11

Wilwood Superlite 4R Rear Drum-to-Disc Brake Kits

Disc Brake Kit, Superlite 4R Rear Drum-to-Disc Brake Kit, Rear, Cross-drilled/Slotted Surface Rotors, Red Calipers, Pads, Chevrolet, GMC, Kit
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Wilwood Superlite 4R Rear Drum-to-Disc Brake Kits 140-17542-DR

WIL-140-17542-DR

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Part Number: WIL-140-17542-DR

Estimated Ship Date from Texas: Monday 10/19/2026

$2,299.11

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Overview

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Recommended Parts

Replacement Parts

Q&A

Instructions & Calculators

Estimated Ship Date from Texas: Monday 10/19/2026 Would you rather pick it up?

Overview

Brand:

Wilwood Disc Brakes

Manufacturer's Part Number:

140-17542-DR

Part Type:

Disc Brake Kits

Product Line:

Wilwood Superlite 4R Rear Drum-to-Disc Brake Kits

Summit Racing Part Number:

WIL-140-17542-DR

UPC:

889545113990

Position:

Rear

Front Rotor Included:

Brake Rotor Bolt Pattern (in.):

5 x 5.00 in.

Brake Rotor Bolt Pattern (mm):

5 x 127.00mm

Differential Case Design Type:

GM 8.5/9.5 in.

Rear Rotor Included:

Yes

Rear Rotor Style:

Cross-drilled/Slotted surface

Rear Rotor Construction:

Vented

Rear Rotor Diameter:

12.88 in./327.15mm

Rear Rotor Thickness (in.):

1.10

Front Caliper Included:

Rear Caliper Included:

Yes

Rear Caliper Piston Quantity:

Four

Rear Caliper Material:

Forged billet aluminum

Rear Caliper Color:

Red

Brake Pads Included:

Yes

Friction Material Name:

BP-10

Parking Brake Provision:

Yes

Parking Brake Style:

Internal drum

Minimum Recommended Wheel Diameter (in.):

17 in.

Offset (in.):

3.250 in.

Front Spindles Included:

Master Cylinder Included:

Brake Booster Included:

Remanufactured:

Brake Hoses Included:

Quantity:

Sold as a kit.

Wilwood Superlite 4R Rear Drum-to-Disc Brake Kits

Upgrading the brakes on older trucks makes them safer with improved stopping power. Wilwood's new Forged Superlite 4R rear drum-to-disc conversion kits for select Chevy and GMC trucks and SUVs are one of the best upgrades for overall braking performance. You'll experience more brake clamping force, thermal capacity, improved pedal feel, and confidence--from daily street performance to heavy-use applications, including towing, hauling, commercial workloads, and off-road. Kits include internal parking brake assemblies. Rotors are available with a solid or cross-drilled/slotted surface.

Kits feature:

* Complete bolt-on installation using Wilwood's decades of experience in performance, off-road, and competitive motorsports
* Compatible with Wilwood front kits, factory ABS systems and OE master cylinder

--- Calipers: Superlite
• 12.88 in. and 14.00 in. rear kits feature Wilwood's motorsports-proven rigid Superlite four piston calipers
* Stainless steel pistons are housed in Type-III hard anodized bores with high-temperature seals for durability
* Internal drum parking brakes retain OE feature

--- Rotors: ULHP, Spec37 GT or SRP Drilled
• 12.88 in. x 1.10 in. kit features Spec37 two-piece rotors with 48 curved vanes are E-coated in GT slotted or SRP drilled and slotted
• 14.00 in. x 1.10 in. kit features Spec37 two-piece rotors with 72 curved vanes are E-coated in GT slotted or SRP drilled and slotted

--- Brake pads: BP-10 street performance pads provide smooth and consistent response with long wear over a broad range of temperatures (other compounds available)

--- Installation parts: Caliper brackets, parking brake cable connection kit, and premium-grade installation hardware included