Assembling Wilwood DynaPro 6 Disc Brakes: Safety Wiring & Calipers

Text and Photos by Matt Emery

Article

In Part 1 of this tech special, we learned the preliminary steps to assembling a Wilwood DynaPro 6 set of disc brakes. Now take a look at how to wire rotors to safety standards and attach calipers. Be sure to check out Part 1 if you missed it!

 

Let’s jump right in to the final steps:

 

The bolts that hold the rotor to the hub assembly are drilled, allowing them to be safety wired and torqued to 18 ft-lbs.

 

Using a special set of safety wiring pliers, the rotor bolts are safety wired two at a time. By pulling on the center, the pliers spin around, perfectly entwining the wire. Safety wiring the rotor bolts is a no-brainer when it comes to pieces that you really don’t want coming apart at high speed.

 

The spindle is assembled.

 

The combination caliper bracket/backing place is attached to the spindle.

 

Once the Timken outer bearing is greased, it is dropped into place and is followed by the spindle washer.

 

The castle nut and cotter pin are installed. Since it screws on, there is no need to pound on the Wilwood cap.

 

Since the brake pads actually drop into the Wilwood calipers from above, properly aligning the calipers is crucial to ensure that they will work perfectly. Shims are used on the mounting bolts to center the caliper over the rotor. Notice that the caliper is perfectly centered over the rotor. This is how the caliper should look when properly shimmed.

 

Since the pads simply drop into place from above the caliper, they can be quickly and easily replaced. A large clip is fed through holes in the caliper and lock the pads into place.

 

Big thanks to Jim Sleeper of Pomona Valley Customs for letting us look over his shoulder while he did this job.

 

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