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$272.99

Speedway 1955-57 Chevy Car Front Disc Brake Kit

Front Position, 5 on 4.75" Bolt Pattern, 11 Inch Rotor Diameter, Vented Rotor Type, Natural

33 Reviews | 19 Answered Questions

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Part # 91031949

$272.99

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What's In The Kit

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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

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Details

Position:

Front

Bolt Pattern:

5 on 4.75"

Rotor Diameter:

11 Inch

Rotor Type:

Vented

Caliper Pistons:

One

Caliper Finish:

Natural

Color:

Natural

Parking Brake Provision:

MFG. Part #:

91031949

Rotor Thickness:

1.05"

Rotor Shape:

Round

Stud Diameter:

.44"

Stud Length:

.80"

Thread Pitch:

7/16"-20

Track Width Increase:

1.75"

Finish:

Natural

Hardware Included:

Yes

Sold in Quantity:

Kit

Notes:

Includes rotors, bearings and seals, calipers, pads, brake hoses, brake tabs, and caliper brackets.

Rotor Material Type:

Cast Iron

Front Rotor Included:

Yes

Front Rotor Diameter:

11 Inch

Rear Rotor Included:

Front Caliper Included:

Yes

Front caliper Piston Quantity:

Front Caliper Finish:

Natural

Rear caliper Included:

Front Spindles Included:

Master Cylinder Included:

Brake Booster Included:

Info

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

Notes

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.

Charts

910-31949 Instructions (PDF)

Important Messages

Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.

Some parts are not legal for use in California or other states with similar laws/regulations

What's In The Kit

Each kit from Speedway Motors is carefully packaged and delivered right to your door. Below is a list of all the items you should expect to receive when you order this kit. Some of these items may also be available for sale individually if you're here looking for replacement parts.

Speedway Soft Street Organic Brake Pads GM Mid-Size 1969-1977

Part # 9193382

Qty x 1
Speedway Basic Brake Kit for 1955-57 Chevy Car

Part # 91631915

Qty x 1
1969-1972 GM Midsize 11 Inch Brake Rotor, 5 on 4 3/4 Inch

Part # 91065390

Qty x 2
IMCA 1969-77 Midsize Standard Stock GM Caliper, LH

Part # 91031035-L

Qty x 1
IMCA 1969-77 Midsize Standard Stock GM Caliper, RH

Part # 91031035-R

Qty x 1
Inner Wheel Bearing Cone

Part # 912TLM67048

Qty x 2
Wheel Bearing Outer Cone, 3/4", Steel

Part # 912TLM11949

Qty x 2
Replacement Axle/Hub Grease Bearing Seal, 1.87 x 2.40 x .27 Inch

Part # 912S18543

Qty x 2

Spindle Nut Kit for Speedway 49-54 Chevy and 1953-82 GM Spindles

Part # 910616005

Qty x 1
Front Disc Brake Hardware Kit

Part # 9103141.1

Qty x 1

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Speedway 1955-57 Chevy Car Front Disc Brake Kit

Front Position, 5 on 4.75" Bolt Pattern, 11 Inch Rotor Diameter, Vented Rotor Type, Natural

Build Your Kit

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