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Grove 800X4 Disc Brake Conversion

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Part# 06-00837
MFR Model# 76002


The new FAA/PMA approved disc brake conversion for Goodrich wheels and brakes only.

It has been specifically designed to be easily adapted to aircraft in the field by a qualified Airframe Mechanic. The installation requires only standard hand and rivet tools. No modifications are required to be made on the gear leg, or any other part of the aircraft, other than the wheel assembly.

The main components of the retrofit include a brake disc, brake caliper and torque plate. The existing Scott master cylinders provide adequate pressure and volume and need not be replaced.

This conversion has been installed and flight tested on several aircraft.


  • Maintain the classic cub look
  • Improved Braking and Handling
  • Use your existing wheels, tires and tubes
  • Use your existing master cylinder and brake lines
  • Easy installation—all parts & special tools included

Illustrated Parts List


As usual, the Grove Cub brake conversion is straight forward and brings your airplane up to modern standards. The most challenging part is drilling out the rivets in the old brake drum. Since you are drilling the bucked head side of the rivet, the bit will wander unless it is very sharp. I started with a smaller bit and then stepped up to a bigger one. Once I knocked the head off, a quick blow with a punch and hammer and the old rivet pops right out. Once the drum is loose, get it off the hub and clean the area below where the old drum sat. Place the new disc assembly face down and use the long drill to pop the new holes in it. Make sure to drill the first hole and then lock it with either a cleco or one of the new rivets. You MUST do this because the new disc WILL walk when drilling the new holes. After this is done, I used a long rivet header that was shallowed on the grinder and hit it with my rivet gun. This will peen the tail right over as needed. The rest of the installation is straight forward. You will need a small tubing cutting and a flaring tool or block. I used AN fittings over the automotive stuff as much as I could. It may take some fabrication work below the floor and in the master cylinder area, but is not impossible. The brakes bled very quickly and worked perfect on the first pump. This is a great mod for an old Cub and gives you a little piece of mind for stopping when you want and need to. Contact me if you have any questions on this mod. Ken

Recover Y
June 28, 2015


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Does this unit, part number 06-00837, come with STC included?

Yes, this product comes with STC included.

Q: Is the part number 06-00837 brake conversion for both sides: left and right?

Yes, it will ship as a pair.

Q: If you need to replace the disc, what is the correct part number?

Grove part number 018-013. Please contact our sales department for pricing and lead time.

Q: Does the conversion kit include decent installation instructions?

Yes, the instructions are included. We have also added them to the Documents section of this web page for download and review.

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