JKS PN2291 User Manual

Important

Parts

RECOMMENDED FOR vehicles lifted 4-6”

Installation

only. Installation on vehicles with a lower ride
height is possible, as long as installer properly
secures the brake line to prevent interference
with other components.

Instructions

Product: HD Extended Brake Lines

Part Number: PN 2291

Applications: Jeep Wrangler YJ, 1987-95

Jeep CJ5 / CJ7 / CJ8, 1982-86

Welcome

CONGRATULATIONS on purchasing new
HD Extended Brake Lines from JKS
Manufacturing. We are committed to providing
you with the best products available and your
satisfaction is our first priority.

PLEASE READ these Installation Instructions
carefully, and save them for future reference,
as they contain important installation and
maintenance information.

JKS HD Extended Brake Line Installation PN 2291 Page 1 of 2

COMPATIBLE WITH 3/8” brake hose bolt at
caliper only – will not fit 7/16” bolt.

Tools Required

 Metric/Standard Socket Wrench Set
 3/8” Wrench (Flare Nut or Open End) **
 1/2” Wrench (Flare Nut or Open End) **
 9/16” Open End Wrench
 11/16” Open End Wrench
 T35 Torx Driver *
 Torque Wrench
 Factory Service Manual (recommended)

* Asterisk denotes tools that are not required for some
applications. Thoroughly read instructions first to
determine which tools will be required for your
application.

** The original mounting bolt for the factory brake hose
mounting bracket can vary by application.

DESCRIPTION QTY

HD Extended Brake Line 2

A

Copper Washer 4

B

Mounting Bracket 2

C

Retainer Clip 2

D

Self Tapping Screw 2

E

Installation

 4. POST-INSTALLATION

 1. REMOVE ORIGINAL BRAKE HOSES

 Disconnect the hard metal brake tube from the

original rubber brake hose that is attached to
vehicle chassis. HINT: Plug the metal tube to
prevent brake fluid from leaking.

 Remove the original brake hose mounting

bracket from chassis and save original bolt.

 Disconnect the original rubber brake hose from

the caliper. Discard both
retain the original bolt.

copper washers, but

 2. INSTALL NEW HD EXTENDED

BRAKE LINES

 Attach square end of HD Extended Brake Line

(A) to caliper with new
and insert the original bolt.

Copper Washers (B),

HINT: Install with new copper washers as
indicated above, making sure brake line will not
contact tire.

 Using a torque wrench, tighten the original bolt

to 23 ft-lbs.

 Position the new brake line Mounting Bracket

(C) in original location on chassis.

 Install new Mounting Bracket (C) to chassis

using the original brake hose mounting bolt
if possible. Otherwise install Mounting Bracket
to chassis using the supplied Self Tapping
Screws (E).

 Insert opposite end of HD Extended Brake Line

(A) into Mounting Bracket (C) and secure with
the supplied Retainer Clip (D).

 Attach the original hard metal brake tube to HD

Extended Brake Line (A) and tighten securely.

 3. BLEED FRONT BRAKES

 Refill the master cylinder reservoir with the

approved brake fluid.

 Bleed the front brakes per the factory service

manual instructions for your vehicle.

 Check brake lines to ensure they do not

interfere with tires or any moving parts. Brake
lines should also be checked at maximum
suspension extension (droop) to ensure length
is sufficient. HINT: On vehicles lifted less than

4.0”, it may be necessary to secure the brake
line away from any other components.

 Check all hardware to ensure it has been

correctly installed and tightened to factory
torque specifications.

Maintenance

Check torque specifications as part of regular vehicle
maintenance schedule.

© 2009 JKS Manufacturing, Inc & Aftermarketing, LLC
Revision Date 8/8/2009

JKS HD Extended Brake Line Installation PN 2291 Page 2 of 2