Speedway 1955-57 Chevy Car Front Disc Brake Kit

#91031949

Speedway 1955-57 Chevy Car Front Disc Brake Kit

Name: Speedway 1955-57 Chevy Car Front Disc Brake Kit
Brand: Speedway Motors
SKU: 91031949
Price: 363.99 USD
Availability: InStock
Rating: 4.9 (47 reviews)

47 Reviews

22 Questions

Bolts onto stock '55-'57 spindles with no machine work
Includes 11" rotors and 1969-72 GM calipers (7/16"-20 inlets)
Brake pads, bearings, seals, hoses, and hardware are included making this a complete bolt on kit

Rotor:

Standard

Drilled/Slotted

$363.99

/kit

In Stock

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Product Summary

Front Position, 11 Inch Rotor Diameter, Natural

Bolts onto stock '55-'57 spindles with no machine work
Includes 11" rotors and 1969-72 GM calipers (7/16"-20 inlets)
Brake pads, bearings, seals, hoses, and hardware are included making this a complete bolt on kit
May not clear some 14" wheels

Comes as a Kit

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Key Specs

MFG. Part #	91031949
Position	Front
Wheel Bolt Pattern (in.)	5x4.75 in.
Wheel Bolt Pattern (mm)	5x120.65 mm
Rotor Diameter	11 Inch

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Need To Know

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Installation Details

Disc Brake Kits Installation Instructions (91031949)

Brake Pad Identification and Friction Surface Options Explained

Brake Caliper Brackets Installation Instructions (91631915)

Installation Tips

This kit will not work with the original '55-'64 Chevy 4-wheel drum brake master cylinder. It does not have the capacity to supply the proper amount of pressure for front disc brakes. For best results, we recommend using master cylinder booster kit 910-31974 (disc/drum) or 910-35557 (disc/disc) with this front disc brake conversion.
Front drum-to-disc brake conversions also require a proportioning valve to be installed in the rear brake line circuit. The proportioning valve modulates pressure to the rear brakes which is necessary to prevent the rear brakes from locking up in an emergency stop situatiuon. Recommended master cylinder booster kits 910-31974 and 910-35557 incude an adjustable proportioning valve to allow for a proper installation of front disc brakes.
Some grinding to the steering arms may be required to achieve full turning radius.
If using the slide pins in the kit you must push the bushing/spacer out of the caliper ears to allow it to fit and some force will be required to get it past the rubber seal to allow the threads to engage into the bracket.

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Speedway Motors 91031949 Details

Just what's needed to update your classic Tri-Five Chevy! Eliminate those archaic ball bearings and gain first class stopping power all at once with this front disc brake conversion kit. Rotors and caliper brackets bolt onto your original spindles with no modification or machining required. Calipers mount to the front of the spindle.

This disc brake kit will increase the total front track width by 1-3/4" (7/8” per side).

Uses 11" rotors and 1969-72 GM calipers (7/16"-20 inlets)
May not clear some 14" wheels
Bolts onto stock '55-'57 spindles with no machine work
Includes rubber brake hoses

Guides & Documents

Disc Brake Kits Installation Instructions (91031949)

Disc Brake Pads Technical Information (9193382)

Brake Pad Identification and Friction Surface Options Explained

Brake Caliper Brackets Installation Instructions (91631915)

Speedway Motors 91031949 Specifications

KEY SPECS
MFG. Part #	91031949
Brand	Speedway Motors
Position	Front
Wheel Bolt Pattern (in.)	5x4.75 in.
Wheel Bolt Pattern (mm)	5x120.65 mm
Rotor Diameter	11 Inch
Rotor Type	Vented
Caliper Pistons	One
Caliper Finish	Natural
Parking Brake Provision	No
Minimum Recommended Wheel Diameter	15 Inch
Rotor Shape	Round
Hardware Included	Yes
Rotor Style	Plain Face
Front Rotor Included	Yes
Front Rotor Diameter	11 Inch
Front Caliper Included	Yes
Rear Caliper Included	No
Front Spindles Included	No
Master Cylinder Included	No
Brake Booster Included	No
Brake Hoses Included	Yes
Rear Rotor Included	No
Bolt Pattern	5 on 4.75"
Finish	Natural
Color	Natural
Front Caliper Finish	Natural
Front Caliper Piston Quantity	1

GENERAL
Sold in Quantity	Kit
Notes	Includes rotors, bearings and seals, calipers, pads, brake hoses, brake tabs, and caliper brackets.
Rotor Thickness	1.05"
Stud Diameter	0.44"
Stud Length	0.8"
Thread Pitch	7/16"-20
Front Suspension Type	IFS
Rotor Material Type	Cast Iron
Track Width Increase	1.75"

Ratings & Reviews

4.9

47 Reviews

Overall Assessment

The customers consistently praised the product's quality, ease of installation and excellent fit. Many customers referred to the disc brake conversion kit as offering improved performance and stopping power. The kit's compatibility with vehicles such as '57 Belair and '55 Chevy received positive mentions. Repeat purchases and recommendations reflect high customer satisfaction. A few issues with installation were noticed but overall, customers were satisfied with the product's functionality and safety improvement. Some customers found the kit to be better value than similar products from competitors.

Write A Review

4.8

47 reviews

Most Liked Positive Review

5.0

Disc brake kit

Great product, easy installation, perfect fit

Most Liked Negative Review

3.0

I would not buy this product again

Had to grind one bracket a bit to fit properly( right caliper bracket).wheels appear to be more than 7/8" out more from stock. Have to buy offset wheels now.

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Sort Reviews

Awesome product

5.0

2 months ago

Smokeyjs

Elkhart Indiana

Verified

Parts fit exactly like they should no problems with the install went smoothly. I would recommend Speedway Motors to everyone, parts in stock and fast response and fast shipping and costs.

Would Recommend

Good kit

5.0

4 months ago

55chevy11

Knoxville tn

Verified

Fit good

Would Recommend

YES. YOU NEED TO TELL BRACKETS IS NOT INCLUDED!

5.0

6 months ago

BIG DADDY

T. KANSAS

Verified

BUIDING CAR NOT YET DRIVEABLE

Would Recommend

Fits well - clear instructions

4.0

7 months ago

Zimmy

Appleton WI

Verified

Installed a 57 Chevy 210. Instructions covered everything, definitely read through before installing. Had to drill new holes for cotter pins, that was th most difficult part. Bearing are from China. If you want to paint the calipers they will need to be scuffed first.

Would Recommend

Good product for the money.

5.0

a year ago

Mike

Birmingham Alabama

Verified

We had a hard time finding what we needed on a pieced together 55 build we purchased however finding this was a godsend. Very good product for the money

Would Recommend

Great product worked perfect

5.0

a year ago

Disk brakes

Ionia Iowa

Verified

Economical conversation for tri five. Worked great. Good product

Would Recommend

I'd buy it again

5.0

a year ago

Grease R

Eden prairie mn

Verified

Good fit on one side,other welded wrong. Speedway sent out another worked great!

Would Recommend

This brake kit fit like a glove .

5.0

a year ago

Pappy

Waynesboro Mississippi

Verified

Great fit. easy too install. Kit came complete with everything down to the carter keys. I would highly recommend this product to anyone.

Would Recommend

Yes

5.0

2 years ago

Chuck

Chicago, Illinois

Verified

I like the product very much and it fit my car with an easy installation

Would Recommend

Would definitely buy again.

5.0

2 years ago

Pops

Idaho

Verified

Installed on my '55 Chevy, a much needed upgrade for it.

Would Recommend

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Questions & Answers

22 Questions • 18 Answers

Sort Questions

Will this kit work with drop spindles 91034923?

by John Doe

• 2 years ago

1 answer

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What size stud hole is the rotors?

by Greg

• 3 years ago

1 answer

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how long are the included brake hoses?

by Tony

• 4 years ago

1 answer

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Are these available with a 4.5 bolt pattern by chance?

by Keith

• 7 years ago

1 answer

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What about the wheel bearing? Are they new tapered style or the original style?

by Joshua

• 8 years ago

3 answers

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Will these work on a1957 Pontiac Chieftain

by Jack

• 8 years ago

1 answer

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Does the mounting bracket for the calipers mount to the front of the spindle? So that when mounting the caliper to the rotor in would be in the front and not the rear

by Cuz

• 8 years ago

2 answers

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I have a 1955 chevy 210 with early 14x6 torque thrust d wheels. my question is if the calipers in your kit are the smaller metric ones will the clear these wheels? THANKS

by nub

• 8 years ago

1 answer

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I have a 1957 belair wagon. Can you tell me if I will need to replace my original spindles in order to install this disc brake upgrade. If so, what do you recommend? Thanks.

by Jeff

• 8 years ago

6 answers

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I have a 1956 Belair with stock brakes and master cylinder. Do you sell a disc brake conversion kit for the rear as well?

by Opie

• 9 years ago

1 answer

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Fitment

1955-1957 Chevy Bel Air

1957 Chevy Del Ray

1955-1957 Chevy One-Fifty Series

1955-1957 Chevy Two-Ten Series