Product Summary

1.57" Overall Diameter

  • Adapts '37-'48 Ford hydraulic "juice" brake backing plates onto early Ford spindles
  • Fits '28-'36 Ford passenger car spindles: Model A, Model B, Model 40/46/48/50/67/68
  • Use with 1940-design Ford front wheel hubs such as our 91065450
  • Ideal for traditional hot rod builds, Model A speedsters, and early Ford restorations
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Key Specs

MFG. Part #91631928
BrandSpeedway Motors
Overall Diameter1.57"
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Speedway Motors 91631928 Details

The old hot rodder's secret! Upgrade from those ineffective mechanical front brakes to Ford's first hydraulic drum brake system, often referred to as "Ford juice brakes."

This kit is used to adapt '37-'48 Ford drum brake backing plates and '40 Ford hubs (such as our 91065450 hubs) to Model A, Model B, or 1932-1936 Ford front spindles. The set includes a pair of spacers to go between the spindles and the backing plates, as well as a pair of bearing spacers. One set will take care of both front wheels of your car.

The included bearing spacer is 0.335" thick and will space the inner bearing out that distance, so expect a 0.67" track width increase when using these adapters.

The included adapter rings snap inside the hole on '37-'48 Ford backing plates to decrease the I.D. to the correct size to center the backing plate onto 1928-1936 Ford spindles. The rings are grooved on the outside to keep them securely in place on the backing plates. You may need to elongate the holes in the backing plates to match up to the Model A or B spindles having 3-1/16” center to center spacing as opposed to the 3-3/8” spacing on the later backing plates.

The bearing spacers position the hub bearings correctly and provide the seal surface for the required '40 Ford style hubs. The factory steering arms are not affected, however the top of the '28-'36 spindle will require some minor clearancing for the backing plate to seat properly.

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Speedway Motors 91631928 Specifications

KEY SPECS
MFG. Part #91631928
BrandSpeedway Motors
Overall Diameter1.57"
GENERAL
Sold in QuantityKit
NotesIncludes spacers to locate backing plates, bearing spacers, and instructions. Does both sides. Same as Ford 32-68183-1.

Ratings & Reviews

4.3

6 Reviews

Overall Assessment

Customers commend the product for its affordability, perfect fit, accuracy, and easy installation. It's an effective solution for installing Hydraulic Brake Backing plates on Model A Fords. The larger ring offers precise alignment while the smaller rings aid in spacing out the inner wheel bearings. The use of a hardier standard steel ring was suggested for improved durability. Overall, customers find this kit practical and reliable, setting it apart from other options on the market.

4.3

6 reviews

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Yes

5.0

a year ago

Johnny

Celina Tennessee

Verified

Works great on my model a

Would Recommend

A must to use early spindles

5.0

2 years ago

JMC

Orange county, CA

Verified

This is a must for using later hydraulic brakes on early Ford spindles. The large rings are actually piston rings and can be very fragile. Install with care!

Would Recommend

Unfortunately disappointed

1.0

3 years ago

Lurch

SoCal

Verified

This kit would work great if the ring was just common steel. The piston ring is too ridged and broke as soon as I started tapping on it. A mild standard steel ring is all that is needed

yes

5.0

7 years ago

big arlie

kirksey

Verified

cheap,easy,good

Would Recommend

good fit

5.0

7 years ago

tourer 26

Adelaide, Australia.

Verified

all fits as it should, nice and neat. accurate alignment.

Would Recommend

Works Perfect, a must-have!

5.0

13 years ago

Bentley

Maysville, GA 30558, USA

I have installed several Hydraulic Brake kits on Model A Fords. This kit is needed to install the front Hydraulic Brake Backing plates from an early Flathead Ford, onto Model A front spindles. The larger ring centers up the backing plate, you will have to open the bolt holes with a drill just slightly, so make sure to use the larger ring to center the plate while you are drilling. The smaller rings space out the inner wheel bearings, and give a place for the seal to ride against. I like to use JB Weld to epoxy the small ring in place.

Would Recommend

Showing 6 of 6 reviews

Questions & Answers

4 Questions • 4 Answers

After installing this kit, and '40 or later baking plates, Can you use the stock Model A hubs with '40 Ford drums, as both are of the 5x5.5" bolt circle, or is it a must to use the later '40 hubs?

by Chad M

• 8 years ago

1 answer

How far out does the bearing spacer move the hub when installed?

by mister_c

• 10 years ago

1 answer

Would you also use this kit to adapt the rear brakes? Also, would this kit work the same with your Bendix style drum brakes?

by Pete

• 15 years ago

1 answer

if i use this adapter kit to use either 1940 or 1953-56 ford f-100 brakes, will the backing plates clear OR interfere with my STOCK 1929 MODE A, front steering ARMS---TIE ROD ENDS---TIE ROD---DRAGLINK---OR THE DRIVERSIDE STEERING SPINDLE DOUBLE ARM to mak

by

• 15 years ago

1 answer

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