|BOLT ON BRAKING
Improved Stopping Power for 1955-1959 Chevy Trucks
By Brian McCormick|
If you are building a classic truck, chances are that
nearly everything you could possibly need to replace or update is readily
available through the after market. Among the sea of components is a wide
range of suspension kits that provide updated geometry, ride, handling and
reliability. It is not uncommon for enthusiasts to pay thousands of dollars
for suspension products alone. However, at the top of every shopping list
should be a quality brake system to safely stop your classic Chevy. It makes
absolutely no sense to trick out the suspension and not update the brakes.
The bottom line is that you are asking for trouble in the long run. Classic
Performance Products has a new power brake kit for '55-59 Chevys that addresses
all the improvement questions you might have. They have gone the extra mile
to include new,
quality products attached to a well-designed retrofit
bracket system. Some of the notable features of their system include
a 7-inch, dual-diaphragm power booster and GM master cylinder that provides
minimal pedal movement and maximizes 100 percent of the master cylinder's
effectiveness. The kit also comes with a Delco combination (proportioning)
valve that is pre-plumbed with stainless steel brake lines so all you need
to do is connect your rear and front lines to the new lines. The combination
valve also contains a provision and wire attachment for a brake warning
light. All of the necessary Grade 8 and Nylock hardware is included to make
attaching the kit to the stock location of your frame easy. Adjustments
are also easy thanks to an aircraft-quality Helm joint attached to an added
bracket that can be used to
further increase the ratio for even easier braking.
Since the design of the kit follows the traditional under-cab mounting location,
a fluid-fill bottle comes as standard equipment. Optional is a pre-fabricated
access door that can be installed under the driver's seat. Classic Performance
Products' years of experience in after market braking systems has produced
one of the most complete power brake kits you can buy. they're perfect for
the novice enthusiast looking to improve his truck's braking system, or
the customizer building a hot rod show truck. Stopping power is not the
place to scrimp on money, especially if you are going to invest a lot of
time and cash into your ride. Follow along as Classic Performance Products
takes you through the installation procedures and you'll see just how complete
and easy the kit is to install.
A computer-generated diagram shows the entire assembly
construction, which can be helpful should you choose to disassemble part
of the kit.
To begin, remove the pedal arm from the stock master cylinder.
Unbolt the master from the frame and remove the brace
plate from behind the stock mount This brace may be tack-welded in end should
Due to the length of the power brake kit, the stock parking
brake pulley must be moved towards the rear. Measure 14 inches from the
rear stock hole and mark the spot on the frame. Do the same for the front
It is important that the new holes be the same height
as the original ones. Measure from the hole center to the bottom of the
frame to determine the distance, then mark the height onto the two new hole
marks you made in the previous step.
Once the two new hole locations have been determined,
drill each hole using a 3/8-inch drill bit
Reattach the stock parking brake pulley to the new location
on the inside of the frame.
The stock parking brake cable attaches to a hinged bracket
on a crossmember to the rear of the power brake kit. Remove the old pin
holding the end of the cable.
Feed the cable through the inside of the frame and into
the pulley bracket.
Drill a new hole on the outside of the bracket as shown.
This will be the new attachment location for the cable. The Classic
Performance Products kit comes with a new pin since the old one is probably
pretty worn out.
The new bracket simply bolts to the frame brace where
the stock master cylinder was mounted.
Make sure the parking brake cable feeds through the middle
of the new bracket as shown.
The new bracket system requires you to drill new mounting
holes in the frame to properly support the weight of the power brake components.
The entire power brake assembly can now be installed onto
the mounting bracket feed the plunger arm through the middle hole, line
up the booster bolts with the four holes in the bracket and attach the required
nuts to hold it in place. Do not tighten the assembly yet
An additional support brace attaches over the bottom-outside
booster bolt and to the frame where a new hole must be drilled.
Attach the bracket with the provided Grade 8 hardware.
Grease the inside of the pedal arm I pivot point as well
as the new pivot pin included in the kit.
Insert the pedal into the bracket and slide the pivot
pin into the assembly.
The small bracket that extends from the pivot pin has
two holes in it. The inward hole attaches the bracket to the pedal arm.
The outer hole is where the Heim joint attaches to the
In some cases, the casting thickness of the stock pedal
may be too large to allow the Nylock nut to screw onto the assembly bolt
if so, sand as much of the casting as necessary to allow the nut to properly
When the modification is complete, bolt the Heim joint
to the bracket. The plunger an is threaded to allow adjustment in the pedal
Once the pedal assembly is completed, use a grease gun
to lubricate the pivot pin.
The combination valve used in the Classic Performance
Products kit even has a plug application for wiring up a brake warning light
Filling the master cylinder is made easy thanks to a provided
fill bottle with an angled feed nozzle. Another option for easier master
cylinder access is to purchase this cool floor access door that installs
under the driver's seat.
When using the Classic Performance Products power brake
kit, or any other after market power brake kit, a Classic Performance
Products transmission crossmember should be installed,
especially if you are going to install a V-8 engine and Turbo tranny.
|Classic Performance Products 378 E Orangethorpe
Ave., Placentia CA 92870 Tech Line 714-522-2000|
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errors or omissions. Please note that kits & prices
may vary between certain applications.|