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

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Specs
Sold in Quantity:
Kit
Bolt Pattern:
5 on 4.5"
Bolt Hole Pattern:
3.56" x 2.00"
Overall Width:
2.25
Overall Diameter:
11.00
Notes
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
VIDEO
Ford Racing 11 Inch Drum Brake Kit, 2-1/2 Offset

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Please note the following about this product:

  • This item is sold as a kit.

Details

Reviews (2)

Q & A (12)

What's in the Box

Info

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)

Item Details

New Style Big Ford

Specs

  • 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"

Customer Reviews

Rated 5 out of 5 by 2 reviewers.
RATING BREAKDOWN
2 reviews
5 Stars
2
4 Stars
0
3 Stars
0
2 Stars
0
1 Star
0
RECOMMEND THIS PRODUCT:

Leroy66
MPLS, Minnesota

big Ford rear brake system # 910-31937

September 26, 2013
This product is well displayed for a older popular rear brake system used on many types of vehicles. I would like to see if parts are available for those of us that have this system in older form and need the non wearing parts ( namely E-brake levers ) as designated by Ford. Great item for us old schoolers
Pros:
  • only found at speedway
Cons:
  • need to sell seperate brake parts
Yes, I recommend this product.
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Simmo
Dandenong, Victoria Australia.

Great Quality!

February 16, 2010
Bought this from your Aussie dealer, great quality, value and service. I put these on the Winters Champ Street Rod Quick change. Looks old school cool! Thanks so much!
Yes, I recommend this product.
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Page 1 of 1

Product Q&A

12 questions : 12 answers

1 answers

my 9" rearend has old big style axle flange 23/8 and 3.5 , with a 2 3/8 hub flange distance, what drum brake kit do i need also i have 5 x 4 3/4 bolt pattern. thanks Ford 9" rearend with Moser axles 430s and a spool narrowed to 38'' chev bolt pattern 5x4 3/4.

number1judge
British Columbia, Canada
October 26, 2014

my 9" rearend has old big style axle flange 23/8 and 3.5 , with a 2 3/8 hub flange distance, what drum brake kit do i need also i have 5 x 4 3/4 bolt pattern. thanks Ford 9" rearend with Moser axles 430s and a spool narrowed to 38'' chev bolt pattern 5x4 3/4.

Answers

October 27, 2014
EricM
Sorry we do not offer a drum brake kit for the big Ford old style axle flange. We have several disc brake kits such as 91031902 and 8351407139.
1 answers

What replacement brakes shoes are available for this kit? What is it originally from? Thanks.

Richo427
Atlanta, GA
October 14, 2014

What replacement brakes shoes are available for this kit? What is it originally from? Thanks.

Answers

October 15, 2014
EricM
Brake shoes, hardware, and wheel cylinders in kit number 91031937 are from 65-79 Ford F100 pickups.
1 answers

wheel cylinder What is the wheel cylinder bore? thanks, jeff

ohtara1211
New York
August 09, 2014

wheel cylinder What is the wheel cylinder bore? thanks, jeff

Answers

August 11, 2014
EricM
These wheel cylinders are 1" bore size.
1 answers

I have the big bearing torino 9" rear end, I assume these won't fit it?

November 05, 2011

I have the big bearing torino 9" rear end, I assume these won't fit it?

Answers

November 07, 2011
John
Part # 91031937 These drum brakes work with the New Style Big Ford car 9” rear ends with 2.5” axle offset and the 3.15 bearings. If you have the older 9” with 2 3/8” offset we offer kit number 91031939. The kit will not work on the pickup rear ends or the real early 9” from 57 thru 59.
1 answers

Will this product fit the '91 Ford Explorer 8.8 axle which has the same bolt pattern 2" X 3.6"

Don M.
Canada
May 21, 2011

Will this product fit the '91 Ford Explorer 8.8 axle which has the same bolt pattern 2" X 3.6"

Answers

May 23, 2011
John
This drum kit is designed to work with the New Style Big Ford 9” which has a bolt pattern for the backing plates of 2” vertical and 3.562 horizontal. One important thing when using on a rear end not specified is the offset of the axle which is 2.5” from face of axle to face of the housing that has the 4 bolt pattern. Center hole in backing plate is 3.150" and the attaching bolts specified are .381 or 3/8”.
1 answers

do you have drums with the chevy bolt paturn

Deuceman
Wenatchee, Wa
August 25, 2015

do you have drums with the chevy bolt paturn

Answers

August 25, 2015
Eric
Expert
The Currie drums 91096237 have 5 on 4 3/4" as well as 5 on 4 1/2" bolt pattern. We also offer them in a complete brake kit as part number 91096227.
1 answers

do you have black rubber style brake hoses to fit these wheel cylinders?

big D in the 'couve
vancouver wa
September 03, 2015

do you have black rubber style brake hoses to fit these wheel cylinders?

Answers

September 04, 2015
Andy
Expert
I am sorry, we do not offer black rubber brake hoses that will fit directly to the wheel cylinders included in this brake kit. We usually find the rear brakes have steel lines going from a center point out to the wheel cylinders. The center point is connected to the frame with a flexible black rubber hose. Would that be an option for you? We do have a black rubber brake line hose Pt # 917-55581 that would work for that configuration. You would only need to connect the hose to the wheel cylinders with the steel lines.
1 answers

I have the speedway 58 inch rearend and axles i ordered them seperately the axles came with bearings installed with retainer,i had thought the bearings were customer installed.my question is will this brake kit work without removing bearing and retainer?

james
ponca city, oklahoma
November 21, 2015

I have the speedway 58 inch rearend and axles i ordered them seperately the axles came with bearings installed with retainer,i had thought the bearings were customer installed.my question is will this brake kit work without removing bearing and retainer?

Answers

November 23, 2015
Eric
Expert
Yes this drum brake kit is a bolt on installation when used with our new rear end housings and axles which have new style big bearing Ford size.
1 answers

I am running drum brakes both front and rear, (this kit up front) what relief valves should I be using for front and rear.

Allen
Virginia
March 30, 2016

I am running drum brakes both front and rear, (this kit up front) what relief valves should I be using for front and rear.

Answers

March 31, 2016
Eric
Expert
Drum brakes will require 10 psi residual pressure valves if you have a low mounted master cylinder. Part number 91031347 or 83526013707 are commonly used.
1 answers

Per you brake system builder tip drawing you show a 10 PSI RPV in the rear and a 2 PSI RVP in the front for disk brakes. Do you need a 10 PSI for the front also if you are running drum brakes on all four corners?

Allen
Virginia
March 31, 2016

Per you brake system builder tip drawing you show a 10 PSI RPV in the rear and a 2 PSI RVP in the front for disk brakes. Do you need a 10 PSI for the front also if you are running drum brakes on all four corners?

Answers

March 31, 2016
Eric
Expert
Yes the 10 psi residual pressure valve is for drum brakes and the 2 psi is for disc brakes. It makes no difference front or rear. The reason is due to the spring system that drum brakes use which puts pressure on the wheel cylinder. It takes the higher 10 psi residual valve to keep the back flow of fluid from happening.
Page 1 of 2

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