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 Quadratec

®

 1.75”  

 Coil Suspension Lift Kit  

TO REDUCE RISK OF SERIOUS INJURY OR PROPERTY DAMAGE: 

READ ALL SAFETY MESSAGES AND UNDERSTAND ALL 

INSTRUCTIONS AND PROCEDURE 

NOTICES

 BEFORE ATTEMPTING 

TO INSTALL OR USE THIS PRODUCT. FOLLOW ALL INSTRUCTIONS

AND WARNINGS WITH PRODUCT & VEHICLE OWNERS MANUAL.

THIS KIT INCLUDES A COCKPIT SAFETY WARNING STICKER 

REGARDING INCREASED ROLLOVER RISK. THIS STICKER 

MUST BE AFFIXED IN THE COCKPIT, VISIBLE TO ALL VEHICLE 

OCCUPANTS AT ALL TIMES.

RISK OF EYE INJURY! SAFETY GLASSES MUST BE WORN AT ALL

TIMES WHILE INSTALLING OR MAINTAINING THIS PRODUCT.

TORQUE AND RECHECK FASTENERS AFTER 250 MILES AND

FREQUENTLY THEREAFTER. DO NOT USE IF DAMAGED.

Installation Manual: for 2018 - Current Wrangler (JL) 

#16400.0010 

PARTS LIST:

Front Coil Spacers - QTY 2
Rear Coil Spacers - QTY 2
Front Swaybar Links - QTY 2
Front Bump Stops - QTY 2 
Rear Bump Stops - QTY 2
Front Shock Brackets - QTY 2
Rear Shock Brackets - QTY 2
Full Kit Component & Hardware Listed Inside Booklet
Cockpit Warning Sticker - QTY 1

QJL_1.75_LIFT_16400_0010_LTR.indd   1

QJL_1.75_LIFT_16400_0010_LTR.indd   1

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9/11/20   1:27 PM

Summary of Contents for 16400.0010

Page 1: ...CUPANTS AT ALL TIMES RISK OF EYE INJURY SAFETY GLASSES MUST BE WORN AT ALL TIMES WHILE INSTALLING OR MAINTAINING THIS PRODUCT TORQUE AND RECHECK FASTENERS AFTER 250 MILES AND FREQUENTLY THEREAFTER DO...

Page 2: ...IS RESPONSIBLE FOR MODIFICATIONS CONSISTENT WITH STATE LAWS AND GOOD SENSE 2 Before You Begin Installation Congratulations on your purchase of the Quadratec 1 75 Coil Spacer Lift Kit for 018 Current J...

Page 3: ...2 Rear Bump Stop 2 Tall QTY 2 3 8 16 x 3 Hex Flat Head Screw QTY 4 3 8 Flange Nut QTY 4 Rear Shock Brackets QTY 2 1 2 13 x 3 5 Hex Head Bolt QTY 2 7 16 USS Flat Washer QTY 6 1 2 13 Lock Nut QTY 2 1 50...

Page 4: ...e and support frame rails using jack stands Do not lower the axle at this time Remove front wheels tires Loosen the front track bar at both the frame and axle using a 21mm socket and wrench FIGs 1 2 R...

Page 5: ...mm sockets and wrenches FIG 5 Loosen the upper control arms at both the frame and axle using a 18mm socket and wrench FIG 6 1 75 Coil Spacer Lift Kit Installation Front FIG5 FIG6 FIG7 FIG8 Disconnect...

Page 6: ...ness from the axle housing and upper control arm using a trim removal tool FIG 14 Disconnect the brake line brackets from the lower control arm using a 15mm socket FIG 11 Save hardware Disconnect the...

Page 7: ...ch bump stop to axle using the 3 8 hex head bolts washer and flange nut tighten until there is slight deformation of bump stop using a 9 16 socket Repeat this on other side of the vehicle Raise axle j...

Page 8: ...lower control arms This completes the installation work on the front of the vehicle Torque all front end control arm and track bar hardware once the rear installation is complete Only once the vehicl...

Page 9: ...the vehicle use a wheel chock on the front tires to prevent the vehicle from rolling forward and release the emergency brake Raise the rear of the vehicle and support frame rails using jack stands Do...

Page 10: ...perly index and Position the new coil spacers into the frame mounts and re install the coil springs Raise the axle slowly making sure the spacers are still properly indexed in the mounting holes Help...

Page 11: ...OSEN TIRE WHEELS THROUGH FULL STEERING SWEEP AND SUSPENSION TRAVEL ASSURE BRAKE LINES CLEAR AND NOT RUBBING AGAINST ANY SURFACE ABS FITTING AND OTHER FASTENERS SECURED CHECK SPEEDOMETER READINGS AND I...

Page 12: ...n damage alteration modification combination with other parts failure to maintain or improper repair or service b defects or use which pre dates installation of Quadratec accessory or suspension kit b...

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