Product Summary

5 on 5.5" Bolt Pattern, Bolt Hole Pattern

  • This kit comes complete ready to bolt on, including modified forged spindles that are milled for backing plate clearance
  • Iconic 45-fin "Buick" style brake drum brings back the old school look of the past
  • Drums are CNC machined to clear the included hubs making it a simple bolt on installation
  • 5 on 5.5" bolt pattern to match early Ford wheels
  • Backing plates come completely assembled with shoes, wheel cylinders, and brake hardware

Comes as a Kit

Key Specs

MFG. Part #91604052
BrandSpeedway Motors
Bolt Pattern5 on 5.5"

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Speedway Motors 91604052 Details

  • No machining required for installation, unlike original Buick finned drums
  • Iconic 45-fin "Buick" brake drum styling of the past
  • New aluminum castings with integrated steel brake shoe liner
  • Lighter weight than a traditional steel cast drum brake
  • CNC machined to clear 1937-1948 Ford brake 12”x2” drum brakes
  • Computer balanced for a smooth ride, no ugly stick on weights
  • Hub centric 5 x 5.5" wheel bolt pattern fits many popular wheel styles
  • Uniformly smooth cast surface is ideal for surface polishing if desired
  • Includes 1937-1948 Ford 12"x2" Bendix brake kit, early Ford hubs, and forged spindles
  • Bearings, bearing races, wheel seals, and king pins included to complete installation
  • Kelsey Hayes or Ford wire wheels are not recommended due to the same issues as original Buick drums

Get The Classic Looks of 45 Fin Buick Brake Drums for Your Ford Hot Rod with No Machining Required

Preserving traditional hot rod styling and designs of the past is getting more difficult by the day. In the past, acquiring a set of finned Buick aluminum brake drums for your traditional Ford hot rod required hours of rummaging through swap meets and some time on the lathe, machining them down to fit on your 1937-48 Ford spindles - not any longer!

Speedway Motors’ exclusive Buick-style brake drum combines modern design and engineering with the classic 45-fin drum styling of the past. This is not a flimsy cover, but rather a high-quality recreation of the most effective brake drums ever produced. To overcome the inherent design flaws with drum brakes, Buick introduced front aluminum brake drums across all models in 1958. Typical cast iron drum brakes build heat quickly and begin to fade. Hot rodders quickly discovered that the aluminum material and the 45 radial fins radiated heat much faster than cast iron drums. Plus, the weight savings of aluminum made them faster at the drags.

It wasn't easy to adapt this new technology to their old Ford, though. Machining of the Buick finned brake drums was required to correct the offset, clearance the hubs for the drum to fit and change over to the Ford wheel bolt pattern. We've saved you the time, trouble and cost associated with finding and machining crusty old swap meet parts. This all-new improved design of the Buick finned drums features an increase in strength over the OE Buick finned drums, a hub-centric center register for improved safety and handling, and the correct offset built in to clear traditional Ford brake setups. Plus, our 45 fin Buick brake drums are computer balanced internally, eliminating those ugly external weights, providing a smooth ride.

Everything You Need To Install Buick Finned Drums On Your Ford Spindles

These brand new cast aluminum brake drums include a steel brake liner and are machined with the proper clearances to fit directly onto the included 1937-1948 Ford front wheel hubs and 12"x2" Bendix-style assembled drum brake package.The Speedway spindles included are one-piece, drop-forged design, constructed of high strength 4140 steel, which makes them superior to original components. These spindles are modeled after the popular 1937-1941 round-back passenger car design and use 1937-1941 Ford king pins (included). These spindles fit Ford axles from 1928-1948 passenger car applications. These spindles have already been machined to clear the Bendix Style brake kit included, making this a truly bolt on brake package. All new wheel bearings, bearing races, and wheel seals are included to make installing this complete drum brake kit a breeze on your spindles. If you like the idea of using polished 45 fin Buick brake drums, we offer this kit with polished drums as well. These 45 fin Buick brake drums are the perfect addition to any traditional hot rod build.

Kit Includes:

  • (2) Aluminum Buick-style finned brake drums
  • (2) Assembled Bendix-style drum brake backing plates
  • (2) Early Ford style front hubs w/studs installed
  • (2) Forged spindles w/ king pins, milled for clearance
  • (2) Ford inner bearing races
  • (2) Ford outer bearing races
  • (2) Tapered inner bearings
  • (2) Tapered outer bearings
  • (2) Front wheel seals

Speedway Motors 91604052 Specifications

MFG. Part #91604052
BrandSpeedway Motors
Bolt Pattern5 on 5.5"
Bolt Hole Pattern
Sold in QuantityKit
NotesWheel studs are 1/2-20 thread