Well, there is one out there, if I am reading it correctly. It is on the
www.chevyduty.com website. Part number 71-977C5. If you enter this part number in the SEARCH box, you can read it for yourself. This is the description (the site has pictures, too)
Our Price: $799.95
Quantity
Our complete conversion kit allows you to change your 6-lug drum brakes to the more commonly used 5 on 4 3/4 disc brakes. A wheel change is required, but most enthusiast want to step up to the popular 5-lug setup anyway. Your stock spindle is retained and you get the increased performance of disc brakes. Kit includes rotors, caliper brackets, bearings, seals, spindle nuts, dust caps, banjo bolts, brake holes, brake booster, master cylinder, proportioning valve, and mounting hardware.
(*No Free Shipping-These kits are heavy-Shipping Costs range from $30-$80 per kit depending on your delivery area)
Part # 71-977C5