ReadyLift 44-3060 User manual

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44-3060/44-3080IM-AC
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MON-FRI 7AM-4PM PST
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**Please retain this document in your vehicle at all times.**
IF your ReadyLIFT® product has a damaged or missing
part, please contact customer service directly and
a new replacement part will be sent to you immediately.
For warranty issues, please return to the place of
installation and contact ReadyLIFT.
Limited Lifetime Warranty
This unique product warranty proves our commitment to the quality and reliability of every product that
ReadyLIFT manufactures. The ReadyLIFT product warranty only extends to the original purchaser of any
ReadyLIFT product, if it breaks, we will give you a new part. Warranty does not apply to discontinued parts.
Our Limited Lifetime Warranty excludes the following ReadyLIFT items; bushings, bump stops, ball joints, tie
rod ends, heim joints and shock absorbers. These parts are subject to wear and are not considered defective
when worn. They are warranted for 12 months from the date of purchase for defects in workmanship.
This product warranty is voided if the vehicle is not aligned after kit installation and proper maintenance is
routinely done.
Product purchased directly from ReadyLIFT has a 90 day return policy on uninstalled products from the date
of purchase (may be subject to restocking fee). Uninstalled product returns must be in the original Ready-
LIFT packaging. Please call [phone] to get an RGA# for any return. Customer is responsible for
shipping costs back to ReadyLIFT. Returns without RGA# will be refused. Contact ReadyLIFT directly
about any potentially defective parts prior to removal from vehicle.
ReadyLIFT products are NOT intended for off-road abuse. Any damage or failure as a result from off-road
abuse voids the warranty of the ReadyLIFT product. ReadyLIFT is NOT responsible for any subsequent dam-
ages to any related vehicle parts due to misuse, abuse, improper installation, or lack of maintenance. Fur-
thermore, ReadyLIFT reserves the right to change, modify or cancel this warranty without prior notice.
2020 GM HD 6” and 8” LIFT KIT

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READ INSTRUCTIONS THOROUGHLY AND COMPLETELY BEFORE BEGINNING INSTALLATION.
INSTALLATION BY A CERTIFIED PROFESSIONAL MECHANIC IS HIGHLY RECOMMENDED.
READYLIFT® IS NOT RESPONSIBLE FOR ANY DAMAGE OR FAILURE RESULTING FROM IMPROPER INSTALLATION.
Safety Warning
MISUSE OF THIS PRODUCT COULD LEAD TO INJURY OR DEATH.
Suspension systems or components that enhance the on and off-road performance of your vehicle may cause
it to handle differently than it did from the factory. Extreme care must be used to prevent loss of control or
vehicle rollover during abrupt maneuvers.
Always operate your vehicle at reduced speeds to ensure your ability to control your vehicle under all driving
conditions. Failure to drive safely may result in serious injury or death to driver and passengers.
Driver and passengers must ALWAYS wear your seat belts, avoid quick sharp turns and other sudden maneu-
vers. ReadyLIFT Suspension does not recommend the combined use of suspension lifts, body lifts, or other
lifting devices.
You should never operate your vehicle under the influence of alcohol or drugs.
Constant maintenance is required to keep your vehicle safe. Thoroughly inspect your vehicle before and after
every off-road use.
It is the responsibility of the retailer and/or the installer to review all state and local laws, with the end user
of this product, related to bumper height laws and the lifting of their vehicle before the purchase and installa-
tion of any ReadyLIFT products.
It is the responsibility of the driver/s to check their surrounding area for obstructions, people, and animals
before moving the vehicle.
All raised vehicles have increased blind spots; damage, injury and/or death can occur if these instructions are
not followed.
.
Installation Warning
All steps and procedures described in these instructions were performed while the vehicle was properly sup-
ported on a two post vehicle lift with safety jacks.
Use caution during all disassembly and assembly steps to insure suspension components are not over extend-
ed causing damage to any vehicle components and parts included in this kit.
Included instructions are guidelines only for recommended procedures and are not meant to be definitive.
Installer is responsible to insure a safe and controllable vehicle after performing modifications.
ReadyLIFT Suspension recommends the use of an OE Service Manual for model/year of vehicle when disas-
sembly and assembly of factory and related components.
Unless otherwise specified, tighten all bolts and fasteners to standard torque specifications listed within the
OE Service Manual.
Suspension components that use rubber or urethane bushings should be tightened with the vehicle at normal
ride height. This will prevent premature wear or failure of the bushing and maintain ride comfort.
Larger tire and wheel combinations may increase leverage on suspension, steering, and related components.
Due to payload options and initial ride height variances, the amount of lift is a base figure. Final ride height
dimensions may vary in accordance to original vehicle ride height. Always measure the vehicle ride height
prior to beginning installation.

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IMPORTANT NOTE:
The 44-3060 kit was developed using a 37x12.5 tire with 20x9” wheel offset of 0.
The 44-3080 kit was developed using a 37x12.5 tire with 20x10” wheel offset of –18.
If wider tires are used, offset wheels may be necessary and trimming may be re-
quired. Factory wheels can be used but are not recommended with tires over 11.5”
wide.
The stock spare rim can be run in an emergency - exercise extreme caution under
stock spare tire operating conditions. Please note that, if running the spare factory
tire, it is done for short distances and a speed not to exceed 45mph or damage to dif-
ferentials may occur. The Stock spare wheel may not fit the on the front axle due to
over sized steering knuckles. If you encounter a flat on the front axle move one of the
rear wheels to the front and use the spare on the rear.
A lifted vehicle may have different headlight aim performance. ReadyLIFT recom-
mends marking and recording the headlight beam position before kit installation and
then adjusting, if necessary, the headlamps to the same height settings after kit in-
stallation. Set the vehicle on a level surface 10' to 15’ from a solid wall or garage
door. (This is a general distance with some manufacturers requiring different distanc-
es.) Note the top height of the low beam's bright spot, the top of the most intense
part of the beam, for driver and passenger side. Height may vary from side to
side. Repeat this procedure and adjust after lift kit is installed. Adjust if the aim is off
by turning the adjusters gradually (a quarter of a turn) and looking to see where the
new alignment falls. It may be easier to block one headlamp while adjusting the oth-
er. Consult the owner operation manual for procedures to adjust headlights - many
automakers offer headlight aiming specs. Some states have their own specifications
when it comes to headlight aim, so it’s best to follow those rules when alighting head-
lights.
This kit requires the removal and installation of the torsion bar arms. ReadyLIFT rec-
ommends to use our Torsion Key Unloading tool or similar.
ReadyLIFT SKU: 66-7816A
When setting the torsion key adjustment bolt do not exceed 30” for the 44-3060 kit
and 32” for the 44-3080 kit. Measure from the wheel center to the fender edge. Ex-
ceeding this will create a top off condition, meaning the suspension has little to no
down travel. The result is poor ride quality, and premature failure of components.
There are a few extra steps included in this manual that pertain to the 44-3080 kit.
These steps will be clearly marked. 44-3060 lift kit discard these steps.

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VEHICLE RIDE HEIGHT MEASURMENTS
Measure from the fender edge to the axle hub center
Driver
Before
Driver
After
Passenger
Before
Passenger
After
RECORD HEAD LAMP MEASURMENTS
Pre Installation Measurements
It is imperative that you record the following measurements and factory components.
ReadyLIFT test and records as much data from each application as possible. Vehicle
manufactures may change components or add models with different options. By re-
cording and not exceeding the fender to hub center that ReadyLIFT call out will en-
sure the lift on your vehicle is correct. This measurements and components will effect
the completion of this lift kit. Failure to do so may result in over lifting, causing prem-
ature failure of axles, CV boots and drivetrain. Over lifting a vehicle will also result in
a incorrect wheel alignment. This will wear tires incorrectly inside or outside edge. An
Incorrect alignment will cause poor vehicle handling issue such as under steer. Over
lifting will also cause a shock top off condition, creating poor ride quality and pops
and clunks prematurely wearing components. Failure to adjust head lamps may cause
dangerous driving conditions for you and other drivers on the road. Record the head
lamp position before the installation of this lift or leveling kit and adjusting to factory
position after the completion will ensure a safe and enjoyable experience.
Factory components
Factory torsion key Part #
Factory torsion adjustment bolt Length of threads
Factory rear block height Yes/no
Factory rear over load leaf Yes/no
Factory front axle Factory rear axle
44-3060 ReadyLIFT target 30 ReadyLIFT target 30
44-3080 ReadyLift target 32 ReadyLift target 32
After lifted After lifted

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BILL OF MATERIALS
COMPONENTS
DESCRIPTION QTY
Knuckle Driver 1
Knuckle Passenger 1
Torsion Arm Bracket Driver 1
Torsion Arm Bracket Passenger 1
Torsion Arm Spacer 2
Torsion Arm Collar 2
Fabricated Upper Control Arm Kit 8” kit only 1
Torsion Key kit 8” kit only 1
Front Crossmember 1
Rear Crossmember 1
Skid Plate 1
CV Axle Spacer 2
Driver Di Bracket 1
Pass Di Bracket 1
Dierenal Cradle Spacer 8” kit only 4
Rear 12" straight end link 2
Crush Sleeve 4
Bushing 4
Front Brake Line Bracket Driver 1
Knuckle driver brake line bracket 1
Front Brake Line Bracket Passenger 1
Knuckle passenger brake line bracket 1
Bump Stop Extension 2
Bump Stop Nut Plate 2
Bump Stop Extension Washer 2
Front shocks 2
Rear shocks 2
Tapered Block Driver 1
Tapered Block Passenger 1
U-bolt 4
Rear Brake Line Bracket 1
Hardware Pack 1
HARDWARE
DESCRIPTION QTY
Torsion Arm Bracket
3/4-10 x 6" hex head grade 8 Zinc 2
3/4-10 top locking nut grade 8 Zinc 2
3/4 at washer Zinc 4
Front Crossmember
M18-2.5 x 115 hex head 10.9 Zinc 2
M18-2.5 top locking nut 10.9 Zinc 2
M18 at washer 4
Rear Crossmember
M18-2.5 x 115 hex head 10.9 Zinc 2
M18-2.5 top locking nut 10.9 Zinc 2
M18 at washer 4
3/8-16 hex head grade 8 Zinc 2
3/8-16 top locking nut grade 8 Zinc 2
3/8 at washer Zinc 4
Skid Plate
3/8-16 x 1.00 hex head Grade 8 Zinc 4
3/8 at washer Zinc 4
CV Axle Spacer
M12-1.75 x 55 hex head 10.9 Zinc 16
M12 at washer 16
Driver Di Bracket
M12-1.75 x 35 hex head 10.9 Zinc 3
M12 at washer 6
M12-1.75 top locking nut 3
Pass Di Bracket
M12-1.75 X 35 hex head 10.9 Zinc 2
M12-1.75 top locking nut 10.9 Zinc 4
M12 at washer Zinc 6
Dierenal Cradle Spacer
M14-2.00 x 130 hex head 10.9 Zinc 8”kit only 4
12" straight end link
M12-1.75 x 70 hex head 10.9 Zinc 2
M12-1.75 x 80 hex head 10.9 Zinc 2
M12-1.75 top locking nut 10.9 Zinc 4
M12 at washer Zinc 8
Front Brake Line Bracket
1/4-20 hex head grade 8 Zinc 4
1/4-20 top locking nut Zinc 4
1/4 at washer Zinc 8
Bump Stop Extension
3/8-16 x 5.5 SHB grade 8 (socket head) 2
U-bolt
M18 ange nut 8
Rear Brake Line Bracket
5/16-18 x 1" hex head grade 8 Zinc 2
5/16-18 top locking nut grade 8 Zinc 2
5/16 at washer Zinc 4

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***Parts shown in red for picture clarification only***
ReadyLIFT recommends all steps and procedures described in these instructions be
performed while the vehicle is properly supported on a two post vehicle lift with safe-
ty jacks.
Otherwise, park vehicle on a clean flat surface and block the rear wheels for safety.
Engage the parking brake.
Disconnect the vehicle power source at the ground terminal on the battery.
Lock the steering wheel in the straight forward position with the column lock or steer-
ing wheel locking device.
Raise the front of the vehicle and support with safety jack stands at each frame rail
behind the lower control arms.
Remove the Front wheels.
The Following steps for the front axle suspension disassembly and reassembly should
be completed simultaneously.
Before starting installation: ReadyLIFT Suspension highly recommends that the installation of this
product be performed by a professional mechanic with experience working on and installing suspension
products. Professional knowledge and skill will typically yield the best installation results. If you need an
installer in your area, please contact ReadyLIFT Suspension Customer Service to find one of our “Pro-
Grade” Dealers.
INSTALLATION BY A PROFESSIONAL IS HIGHLY RECOMMENDED.
• A Factory Service Manual for your specific Year / Make / Model is highly recommended for reference
during installation.
• All lifted vehicles may require additional driveline modifications and / or balancing.
• A vehicle alignment is REQUIRED after installation of this product.
• Speedometer / Computer recalibration is required if changing +/- 10% from factory tire diameter.
• A vehicle lift or hoist greatly reduces installation time. Installation time estimates are based on an avail-
able vehicle hoist.

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Remove the front plastic gravel
guard lower bolts.
Remove the shock hardware from
the frame and lower control arms
(LCA). Discard the shocks and upper
shock hardware. Retain the LCA
shock hardware.
Measure and record the torsion key
adjuster bolt length. Remove the
torsion bar adjustment bolt.
Record here:
Remove the lower skid plate from
the cross members. Reinstall the
gravel guard bolts to the front cross
member.

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Once the torsion key is adjusted
high enough, remove the cross pin.
DO NOT push it through with your
finger. Always pull it out away from
the keyway. Once the cross pin is
out, remove the torsion bar unload-
ing tool.
Push the torsion bar forward through
the factory keyway cross member
and lower control arm. You may
need to use a hammer and punch.
Hammer on the end of the bar to
break it loose from the keyway and
control arm. Remove the factory
Key.
Loosen but do not remove the outer
tie rod end nut at the knuckle. Strike
the tie rod boss with a dead blow
hammer to dislodge the taper. Re-
move the tie rod after this has been
completed.
Using a torsion bar unloading tool
(ReadyLIFT part #66-7816A) or simi-
lar Relieve the pressure on the tor-
sion key cross pin. Take care as the
torsion key is under extreme pres-
sure and can cause injury and/or
death if handled improperly. Always
use safety equipment.

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Remove the sway bar end links from
the LCA and the sway bar. Discard
the end links and hardware.
Remove the axle dust cover using a
chisel or other suitable tool. Remove
the brake caliper from the knuckle.
Use a suitable device and hang the
caliper out of the way. DO NOT let
the caliper hang by the rubber brake
line.
Remove the wheel sensor from the
steering knuckle. Retain factory
hardware.
Remove all ABS wire clips and brake
line brackets at the frame and
knuckle.

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Remove the axle nut and brake ro-
tor.
Remove the hub bearing mounting
hardware from the knuckle. Make
sure to not drop the hub assembly.
Remove the dust shield with the as-
sembly.
Support the LCA with a suitable jack.
Loosen but do not remove the upper
and lower ball joint nuts. Strike the
ball joint boss on the knuckle to dis-
lodge the tapers. Remove the knuck-
le from the upper and lower control
arms.
Mark the CV axle flange to the differ-
ential flange and driver / passenger
side for reinstallation later. Remove
the CV axle hardware. Remove the
CV axle from the vehicle.

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Remove the LCA and torsion bars
from the frame. Make sure to keep
the torsion bars in the same direction
as they were installed from the facto-
ry.
44-3080 only
Remove the upper control arms.
Remove the front two driver/
passenger LCA bump stops from the
frame. You may need to smack them
with a dead blow hammer to dis-
lodge them. Be careful of the re-
bound. Retain factory bump stops.
Do not remove the rear bump stop.
Remove and discard the rear cross
member from the frame.
Disconnect the electrical connectors
and vent tube from the differential.

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Support the differential with a suita-
ble jack / stands, remove the driver
and passenger side hardware. Mark
the hardware locations as the bolts
must be reinstalled in specific spots.
Carefully lower the differential out of
the vehicle and set aside.
Mark the front drive shaft to pinion
orientation for reinstallation later.
Remove the front drive shaft from
the differential. Let hang out of the
way.
Clean the driver side rear control
arm pocket. Measure from the center
of the control arm mounting bolt
hole to the inside of the frame pock-
et 1.25”, mark a line vertically across
the back and front side of the pock-
et. Connect the two lines across the
top of the pocket.
Using a suitable cutting tool, cut
along the previous made marks. Re-
move and discard the outer portion
of the control arm pocket. Paint the
exposed metal with a quality rust
preventative paint.
1.25”

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44-3080 only
Install the differential cradle spacers and
laser cut washers between the differential
cradle and frame using the provided hard-
ware. Torque all to 95 ft-lbs. Make sure
that cradle mounts clear the control arm
pockets. It may be necessary to grind
some material off the diff cradle to gain
clearance.
Spacer Dimensions
3/4 ID x 2 OD x 1/2 length
Laser Cut Washer Dimension
3/4 ID x 2 OD x 3/16 thick
Install the ReadyLIFT passenger
side diff drop to the diff cradle using
the provided M12 nuts and washers.
Do not tighten at this time.
Install the ReadyLIFT driver side diff
drop to the diff cradle using provided
M12 bolts and washers to the for-
ward two locations. Install the last
mount using the factory bolt and a
provided M12 washer and nut. Do
not tighten at this time.
Raise the diff up to its new mounting
location. Attach the passenger side
bracket to the diff. Use the provided
M12 bolts, washers and factory nuts.
Attach the differential to the Ready-
LIFT driver side bracket using the 2
factory bolts and 1 provided bolt,
nuts in their proper location.

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Torque all diff hardware 95 ft-lbs starting with the driver and passenger
side upper hardware first. Then driver lower hardware. When tightening
the passenger side lower hardware, makes sure to “center” the bracket in
the diff’s slotted mount. Verify that the diff clears the frame cut made earli-
er. If not, trim more frame material out until a minimum 1/4” clearance is
gained. The frame should rest right inside the divot in the diff housing be-
tween the middle and last bolt bosses.
Install the front drive shaft using the
factory hardware and a drop of
thread locker for each bolt. Torque
to 15 ft-lbs. Reconnect the electrical
connector, install the wire harness to
the original locations, attach the vent
tube.
Install the ReadyLIFT front and rear
cross member. Use the factory con-
trol arm and cross member hard-
ware. Do not tighten at this time.
Install the lower control arms to the
ReadyLIFT cross members using the
provided M18 bolts, washers, and
nuts. Do not tighten at this time.

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Tighten and torque the ReadyLIFT
cross members to the frame. Torque
to 150 FT-LBS. Do not tighten the
LCA these have bonded bushings
and must be tightened when the ve-
hicle is at ride height.
Install the provided torsion bar
bracket spacer into the torsion bar
pocket on the lower control arm. In-
stall the spacer from the back side of
the LCA and add the collar to the
spacer from the front side of the LCA
Mark the front side only of the trans-
mission cross member where the
torsion bars pass through. Mark at
the 1 o'clock position and 5 o’clock
position draw a 1/4” thick clearance
line between these marks.
Using a suitable cutting tool, cut
along the previous made marks. Re-
move and discard the outer portion
of the cross member. Paint the ex-
posed metal with a quality rust pre-
ventative paint.

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Install the torsion bar bracket with
the pervious installed torsion arm
spacer. The spacer bolt should be
tight, but does not need to be
torqued.
Mark the location of the lower
control arm attachment hole. It can
help to use the 7/16” drill for this
operation.
Remove the torsion bar bracket. Drill
out to 7/16”.
Install the 7/16” bolt, washer, and
top lock nut. Torque to 55 ft-lbs.

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Raise the lower control arm and
align the torsion bar bracket with the
pervious installed torsion arm spacer.
Attach the bracket to the spacer. Use
provided hardware. Torque the 3/4”
hardware to 250 ft-lbs.
Reinstall the factory torsion bars and
torsion keys. Make sure the torsion
bars are installed in the same direc-
tion as they were installed from the
factory. Leave the torsion keys loose.
Do not add the cross pin or set
screw at this time. Add the new tor-
sion bar bracket to the torsion bars.
44-3080 only
Use provided torsion keys.
44-3080 only
Install the ReadyLIFT upper control
arm to the frame using the factory
cam bolts and cams. Center the
cams Torque to 90 ft-lbs. Final ad-
justment and Torque will be done
during Alignment. Grease the upper
ball joint using a high quality ball
joint grease. DO NOT over grease.
44-3080 only
Install the provided clip nut and con-
trol arm bump stop.

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Raise the lower control arm up and
support with a suitable stand. Install
the ReadyLIFT knuckle to the lower
and upper ball joint using the factory
nuts. Torque the upper ball joint to
65 ft-lbs, and the lower ball joint to
85 ft-lbs. Transfer the o-ring from
the inside of the factory knuckle to
the ReadyLIFT knuckle.
Install the hub assembly and dust
shield to the ReadyLIFT knuckle us-
ing the factory hardware and a drop
of thread locker. Torque to 120 ft-
lbs.
Install the ReadyLIFT CV (1” thick)
spacer in between the CV flange and
differential flange using the provided
Allen bolts, washers and a drop of
thread locker. Torque all CV bolts to
60 ft-lbs.
Reinstall The CV axle. Make sure to
line up the previous marks on the
flanges.

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Install the ReadyLIFT bump stop ex-
tension nut plate into the frame by
inserting into the frame pocket. Ro-
tate the insert until the locks on the
frame are under the plate keys.
Place the ReadyLift Bump Stop Ex-
tension Washer between the bump
stop and vehicle. Install the Ready-
LIFT bump stop extension using pro-
vided 3/8” x 5.5” long Allen head
bolt and washer. Torque to 35 ft-lbs.
Take the factory bump stops and
grind the top edge at a slight angle
to aid in installation later. Drill out
the top of the bump stop with a 1/2”
drill bit 3/4” deep.
Use a soap and water solution to aid
in installation, push the bump stops
into the ReadyLIFT extensions with a
twisting motion. Make sure they fully
seat.

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Install the rotors and calipers using
factory hardware and a drop of
thread locker. Torque to 120 ft-lbs.
Install the factory axle nut cover by
tapping it back on, take a mallet and
tap around the outer edge until it
seats all the way onto the flange.
Reinstall The CV axle factory nut.
Torque to 165 ft-lbs.
Install the provided extended length
shocks to the frame. Use provided
hardware that came with the shocks.
Torque to 40 ft-lbs. Install the lower
shock mount to the lower control
arm using the factory hardware.
Torque to 60 ft-lbs.
44-3080 only
Use 3/4 O.D. x 1/2” length spacers.
Install the outer tie rod ends to the
ReadyLIFT knuckles using the facto-
ry hardware. Torque to 65 ft-lbs.