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1.75” Coil Spacer Lift Kit Installation: Front

Using pliers, squeeze the clamp and
 remove the axle vent hose. On Rubicon 
models, slide the gray tab, squeeze and
 remove the axle locker harness plug.
 Remove the harness from the upper control 
arm using a trim removal tool. (FIG 13)

On the passenger side, slide the gray tab, 
squeeze and remove the axle disconnect 
harness plug. Remove the harness 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 brake line bracket from 
the coil spring mount using a 10mm 
wrench. (FIG 12) Save hardware.

FIG11

FIG12

FIG13

FIG14

FIG15

Remove factory coil spring isolator and 
replace it with provided coil spacer. 
Make sure both posts are properly 
indexed in the frame holes on the 
spacer. (FIG 15)

QJL_1.75_LIFT_16400_0010_LTR.indd   6

QJL_1.75_LIFT_16400_0010_LTR.indd   6

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9/11/20   1:30 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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