Hellwig Pro Series Standard User Manual download pdf

INSTALLATION INSTRUCTIONS

Thank you for purchasing a quality Hellwig Product.

PLEASE READ THIS INSTRUCTION SHEET COMPLETELY BEFORE STARTING YOUR INSTALLATIONPROCEDURES.

1. Raise the rear of the vehicle by the frame so that the rear tires are just slightly contacting the floor. Be sure to

block the front tires and use Jack Stands to support the vehicle by the frame.

2. Lay out the spring leaves into two (2) sets. Each will consist of a main leaf with u-bolt cups and a second leaf

without cups. Lay the leaves so that the long ends are all in the same direction. Stack the leaves so that the

main leaf is on top. The long end of the spring stack must be installed toward the rear of the vehicle and the

short end toward the front.

3. Place the spring stack on top of the main spring with the long end toward the rear of the vehicle.

4. Place the U-bolts with the straight legs in the cups at the ends of the spring. Loosely install the crossbars using

the hardware provided.

5. Adjust the crossbars on the end of the springs so that the adjacent leaf tip will not make contact with the

crossbar when the spring is deflected. It may be necessary to move the spring stack fore or aft for best

alignment.

6. Install the offset U-bolts with the offset toward the axle as shown in the diagram. The U-bolt should be

fastened as close to the hat section as possible. If you are working on 2-1/2” wide springs position the

outboard U-bolt leg against the outboard edge of the main spring to maximize brake hose, caliper, and backing

plate clearance. The U-bolts may also be installed with the legs pointing up and crossbars on top of spring to

provide additional clearance if required. Install the crossbar with the washers and nuts to connect to the main

spring. Torque the nuts to 65 ft-lb and double nut.

008 ( R-008 ) 11/27/05

TORQUE TABLE

BOLT SIZE: 3/8” = 20-30 ft. lbs. – 7/16” = 35-45 ft. lbs. – ½” = 50-70 ft. lbs. – 9/16” = 70-90 ft. lbs

SAFETY: PARK YOUR VEHICLE ON A FLAT LEVEL SURFACE, SET THE PARKING AND CHOCK THE FRONT TIRES.

NOTE: THIS KIT INCLUDES LOCKNUTS WHICH REQUIRE TIGHTENING WITH A WRENCH AFETR BEING STARTED BY

HAND.

NOTE: IF YOUR VEHICLE IS EQUIPPED WITH A BRAKE FLUID PROPORTIONING VALVE ON THE REAR AXLE READ

INSERT (R-362)

IMPORTANT NOTE: IF YOUR VEHICLE IS EQUIPED WITH A FACTORY CONTACT OVER LOAD IT MUST BE REMOVED

BEFORE INSTALLING THE NEW HELPER SPRINGS.

IMPORTANT NOTE: HELLWIG HELPER SPRINGS ARE DESIGNED TO INCREASE THE “LEVEL LOAD” CARRYING

CAPACITY OF YOUR VEHICLE. NEVER LOAD THE VEHICLE THAT THIS UNIT IS INSTALLED ON BEYOND THE

MANUFACTURER’S MAXIMUM GROSS VEHICLE WEIGHT RATING.

2” max adjustment

Offset U-bolts

Crossbars

Leaf Tip

2” max adjustment

Straight U-bolt

Leaf Stack

Hat Section

Main Spring

Main Leaf

Second Leaf

559-734-7451 800-367-5480 FAX 559-734-7460

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INSTALLATION INSTRUCTIONS 1

Summary of Contents

Page 1 - INSTALLATION INSTRUCTIONS

INSTALLATION INSTRUCTIONS Thank you for purchasing a quality Hellwig Product. PLEASE READ THIS INSTRUCTION SHEET COMPLETELY BEFORE STARTING YOUR INSTA

Page 2

7. Adjust the U-bolts at the end to desired preload. The minimum tension adjustment is having enough tension on the end U-bolts so that they do not

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Hellwig Pro Series Standard User Manual

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