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Founder, 1929-2014
Speedy Bill
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Ford Racing 11 Inch Drum Brake Kit, 2-1/2 Offset

SAME DAY SHIPPING! Most orders ship within 24 hours.

Overall Width:
Sold in Quantity:
Overall Diameter:
Bolt Pattern:
5 on 4.5"
Bolt Hole Pattern:
3.56" x 2.00"
Garage Sale:
Includes drums with assembled backing plates. Loaded with wheel cylinders, shoes, springs, emergency brake arm, and hardware.
Ford Racing 11 Inch Drum Brake Kit, 2-1/2 Offset
Ford Racing 11 Inch Drum Brake Kit, 2-1/2 Offset

Click image to enlarge

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Ford Racing 11 Inch Drum Brake Kit, 2-1/2 Offset

Please NOTE the following about this product:

  • This item is sold as a kit.



Q & A

What's in the Box

We offer these rear drum brake kits for popular 9" Ford rear axles. Each kit has new 11" x 2-1/4" drums, backing plates, shoes, wheel cylinders, springs, emergency brake arm and hardware. 

Fits New style Big Ford housing with 2-1/2" axle offset and 3.15" axle bearing. Drums drilled for 5 on 4-1/2" bolt pattern.

Axle Flange Identification Chart (Link)


  • Fluid Inlet:  3/8"-24 inverted flare
  • Drum Dimensions:  11" x 2.25"
  • Drum Center Pilot Hole:  2.780"
  • Backing Plate Center Pilot Hole:  3.150"
  • Attaching Bolt Holes:  0.381"
  • Attaching Bolt Pattern:  3.56" x 2"

Item Details

New Style Big Ford

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If you don't want to spend an arm and a leg on a rear disc brake kit and still have to weld the bracket on, we've got you covered. This kit includes bolt-on caliper brackets, 11-1/4" vented rotors, '78-'88 GM metric style calipers, brake pads and hardware.

  • Fits both 5 on 4-1/2" and 5 on 4-3/4" bolt circles
  • For Ford passenger car axles ONLY 
  • Fits axle with maximum flange diameter of 6-1/4" O.D.
  • For 15" and larger wheel applications ONLY

NOTE: This bolt on brake kit is designed to be used on 8" and 9" housings using 3/8" retaining bolts. If you want to use it on a 9" housing with 1/2" bolts, you will need to use the 3/8" hardware to do so. Fits "old" and "new" style big bearing (3.150" bearing O.D.) Ford housings and with axle offsets of a minimum 2-3/8" to 2-1/2".

Axle Flange Identification Chart (GIF)

910-31902 Instructions (PDF)

New 11" x 2-1/4" Ford Brake Drums

This 11" x 2.25" brake drum is for a 9" axle backing plate kit. These are sold individually.

  • 5 on 4.5-Inch bolt circle
  • Axle center pilot hole 2.78"
  •  Wall thickness at hub -.125"
  • Backspacing from outer edge, to hub area - 3.575"
  • Made in USA
Complete 11" Backing Plates for 9" Ford

This kit inlcudes (2) assembled backing plates with brake shoes, wheel cylinder, self-adjuster, parking brake and springs. This product is sold in pairs.

  • 11" x 2.25" brakes for late model 9-inch axle housing
  • 1" diameter wheel cylinder
  • 3.15" center pilot hole
  • .381" attaching bolt holes
  • 3.56" x 2" attaching bolt pattern
  • Made in USA
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Everything you need to mount brake backing plates to your new 9" Ford housing. 


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