Jeep Wagoneer and J-Truck, Disc Brake Conversion Kit, Dana 44, 1963-1973

Heavy-Duty Front Disc Brake Conversion Kit – 12.25" Rotors – Dana 27 / 30 / 44 (1963–1973)
Designed by JeepsterMan & JustJeepsters

Upgrade your stopping power with one of the largest and most complete disc brake conversion kits on the market—engineered specifically for vintage Jeep applications.

This system features massive 12-1/4" vented rotors and large 2-3/4" bore calipers, delivering significantly improved braking performance over smaller, outdated conversion kits.

💥 Why This Kit Stands Above the Rest

• Oversized 12.25" rotors (1-1/8" thick) for superior stopping power
• Large 2-3/4" piston calipers (not small import units)
• No grinding required for installation
• Slides over your existing hubs (no hub replacement needed)
• Clears most aftermarket 16" wheels
• Designed in-house by JeepsterMan & JustJeepsters

👉 This is not a light-duty kit—this is built for real performance and reliability.

⚙️ Key Features

• Vented rotors
  • 12-1/4" diameter
  • 1-1/8" thick
  • 5x5.5 bolt pattern
  • Precision machined in-house
• New GM-style loaded calipers (not rebuilt)
  • Big bore 2-3/4" piston
  • Black coated finish
  • Pads included
  • Replacement parts available at most auto parts stores
• Heavy-duty caliper brackets (Made in USA)
  • Engineered for proper clearance
  • Tucks caliper inward—no grinding required
  • Dana 44 version includes longer mounting studs
• Stainless steel brake hoses
  • 26" length standard
  • Includes banjo bolts
  • (Optional 18" hoses available upon request)

🔧 Installation Advantages

• Bolt-on design—no grinding required
• Installs over your existing hubs
• No need to replace bearings or races
• Designed for improved clearance vs competing kits

👉 Built to save time and eliminate installation headaches.

⚠️ Wheel Fitment Notes (Important)

• Clears most aftermarket 16" wheels
• May require:
  • 1-1/2" or 2" wheel spacers (typical)
  • 1" spacers for 16" steel wheels
• Will NOT clear 15" aluminum wheels
• Fitment with all 15" wheels is not guaranteed

🚙 Fits:

• 1963–1973 Dana 27 front axle
• 1963–1973 Dana 30 front axle
• 1963–1973 Dana 44 front axle

📦 What’s Included:

• (2) Vented rotors (12-1/4" x 1-1/8")
• (2) New loaded GM-style calipers (pads included)
• (2) Heavy-duty caliper brackets
• (2) Stainless steel brake hoses with banjo bolts
• All required mounting hardware
• Detailed installation instructions

🎥 Installation Video:

Watch the full install here:
https://youtu.be/8Z6c-snQH44

 Fits:

• 1963-1973 Wagoneer
• 1963-1973 J-trucks

Note: Please state your axle and if closed knuckle or open knuckle in the comments section. This kit will fit the Dana 25, 27, 30, and 44 front axles with 5x5.5 bolt pattern. $25 freight charge due to weight.

Disc Brake Installation Instructions

Caliper Pad Installation Instructions