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![Power Brake Booster Conversion Kit for 1955-1959 Chevy/GMC Truck [Disc/Drum]](https://www.jegs.com/images/mini_750/500/555/555-631092.jpg)
Vehicle Info NeededJEGSPART NUMBER: 555-631092
Power Brake Booster Conversion Kit for 1955-1959 Chevy/GMC Truck [Disc/Drum]
$32499$361.99You Save$37.00
4 left in stock
Ships on Nov 02, 2026
Lowest Price GuaranteeGM Truck, Disc Front & Drum Rear
Power Brake Booster Conversion Kit1955-1959 Chevy/GMC Truck Disc/Drum Includes:
- 7 in. Zinc Booster
- 1 in. Bore Dual Master Cylinder
- Proportioning Valve Kit
- Pedal Linkage
- Mounting Bracket & Hardware
Note: Keep your original pedal with this easy to install power brake unit. Bolts to the frame giving you plenty of room for install. May not clear on vehicles with oversize or manual transmissions.
Includes:
- 7" Single power booster
- 1" bore disc/drum cast iron master cylinder
- Disc/drum proportioning valve & bracket w/ lines
- Brake light warning switch
Improve Your Stopping Distance with a Power Brake Conversion Kit
JEGS power brake conversion kits provide better stopping distance to increase vehicle safety by transforming your manual brakes into an improved power-assisted system. All power brake conversion kits include a master cylinder, power brake booster, mounting brackets, and other necessary components for easy installation. We offer several style options to meet your brake improvement needs.
Part TypeBrake Master Cylinder and Booster Assembly
Product LineJEGS Power Brake Booster Conversion Kits
BrandJEGS
Package Height11.2
Package Width13.0
Package Length15.3
Weight27.45 PG
Part CategoryReplacement Parts
Master Cylinder FinishNatural
Mounting Hole Quantity4 holes
Master Cylinder Bore Size1 in (25.4 mm)
Booster Mounting Bracket IncludedYes
QuantitySold as an Assembly
Mounting Hardware IncludedYes
Brake Booster Diameter7 in (177.8 mm)
Brake Pedal Rod Extension IncludedYes
Bowl DesignDual
Rear Brake TypeDrum
Master Cylinder MaterialCast Iron
Master Cylinder Cap IncludedYes
Front Brake TypeDisc
Master Cylinder IncludedYes
Part FitmentDirect Fit
Reservoir IncludedYes
Vendor Part NumberCT-202
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
