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Wilwood Forged Dynalite Internal Caliper Type III Anodized 1.75in Piston 1.25in Rotor Wilwood WIL120-17683
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Wilwood Forged Dynalite Internal Caliper Type III Anodized 1.75in Piston 1.25in Rotor

Wilwood
WIL120-17683
889545117035
Brake Calipers - Perf
20+ Units In Stock - Ships Next Business Day
$ 211.98 $ 196.28
$ 196.28

SKU: 120-17683 | UPC: 889545117035

Wilwood Forged Dynalite Internal Caliper Type III Anodized 1.75in Piston 1.25in Rotor - Fits 1947-1966 Chevrolet GMC Trucks

This right-hand Forged Dynalite Internal Caliper from Wilwood features a Type III anodized finish 1.75-inch square bore piston and matches 1.25-inch thick rotors up to 12.19 inches in diameter. It bolts to factory-style mounts on 1947-1966 Chevrolet and GMC trucks for direct replacement braking upgrades. The design cuts unsprung weight to 3.35 pounds per caliper while delivering even pad pressure across 5.36 square inches of pad area for consistent stops under hard use.

Key Features

  • Forged 6061-T6 Aluminum Body: Delivers aircraft-grade strength at just 3.35 pounds to improve handling and suspension response
  • Type III Hard Anodized Black Finish: Resists corrosion and withstands track or street abuse for years of service
  • 1.75-Inch Square Bore Piston: Applies uniform force to pads for progressive feel and resistance to fade during repeated stops
  • 1.25-Inch Rotor Compatibility: Works with 11.00-12.19-inch diameter rotors common in performance truck conversions
  • Internal Pad Design: Positions pads inside the caliper for maximum area and easy access without wheel clearance problems

Product Notes

  • Right-hand caliper pairs with left-hand 120-17684 for complete front setup
  • Uses Wilwood pad number 7419 with BP-10 or BP-20 compounds for track or street
  • Securely boxed for protection during transit

Installation Notes

  • Professional installation recommended.
  • Requires matching Wilwood bracket kit such as those in 140-10204 series for 55-59 trucks
  • Mounts with 3/8-24 x 1.75-inch grade 8 bolts torqued to 30-35 ft-lbs

This Part Fits

Year Make Model Submodel
1947-1954 Chevrolet 3100 Pickup All
1947-1954 GMC 100 Series All
1947-1954 GMC 150 Series All
1947-1954 GMC 250 Series All
1955-1959 Chevrolet 1500 Series All
1955-1959 Chevrolet 3100 Pickup All
1955-1959 Chevrolet 3600 Pickup All
1960-1966 Chevrolet C10 Pickup 2WD
1960-1966 Chevrolet C20 Pickup 2WD
1960-1966 GMC C1500 Pickup 2WD

Why Choose Wilwood?

  • Engineers disc brakes for racing since 1977 with real-world testing
  • Builds every caliper in the USA from premium materials
  • Designs for drag strip demands and daily drivers alike

Frequently Asked Questions

  • Q: Does this caliper fit 1955-1959 Chevy trucks?
    A: Yes it bolts to Wilwood kits like 140-10204 using factory-style internal mounts on 55-59 Chevrolet 3100 3600 and GMC equivalents.
  • Q: What material and finish are used?
    A: Forged 6061-T6 aluminum body with Type III hard anodizing in black for corrosion resistance and durability.
  • Q: What warranty applies and are pads included?
    A: Backed by Wilwood 1-year limited warranty pads and rotors sold separately with pad 7419 recommended.

Shipping & Handling

  • Method: UPS Ground
  • Availability: In stock - ships same or next business day
  • Packaging: 9 x 7 x 5 inch box
  • Weight: 3.35 lbs

Request For Information

Have questions about Wilwood Forged Dynalite Internal Caliper Type III Anodized 1.75in Piston 1.25in Rotor? Fill out the form below and we'll get back to you by the next business day.
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