Installation manual
3” suspension system
2005 — 2018 Toyota Tacoma
4x4 and 2WD PreRunner
Part # 52907
sj11112011rev.05
Part # 52907
2005 - 2018 Toyota Tacoma
4x4 and 2WD PreRunner
3” suspension system
Important customer information:
Tuff Country EZ-Ride Suspension highly recommends
that a qualified or a certified mechanic performs this
installation.
Part #
Description
52907-01
52907-02
TCI-R15
CB38
5U-242S
52907NB1
52907INST
52907INST
Front strut spacer
Front pre-load spacer
Rear add-a-leafs
Hardware bag
9/16” x 2 9/16” x 8 5/8” square u-bolts
Hardware bag
Instruction sheet (customer copy)
Instruction sheet (installer copy)
Rear view mirror hanger
Warning decal
MIRRORHANGER
WARNINGDECAL
Qty.
2
2
2
1
4
1
1
1
1
1
Congratulations on your selection to purchase a Tuff
Country EZ-Ride Suspension System. We at Tuff
Country EZ-Ride Suspension are proud to offer a high
quality product at the industries most competitive pricing. Thank you for your confidence in us and our product.
The Tuff Country EZ-Ride Suspension product safety
label that is included in your kit box must be installed
inside the cab in plain view of all occupants.
For a list of parts, please refer to the back of the installation manual for photos of parts that are included in
this suspension system.
Make sure to use thread locker or loctite on all new and
stock hardware associated with the installation of this
suspension system.
After the completion of the installation a front end
alignment is required.
It is the responsibility of the customer/installer to wear
safety glasses at all times when performing this installation.
It is the customers/installers responsibility to read and
understand all steps before installation begins. If you
have any questions or concerns, please contact our
technical department @ (801) 280-2777. Also, the OEM
manual should be used as a reference guide.
This vehicles reaction and handling characteristics
may differ from standard cars and/or trucks.
Modifications to improve and/or enhance off road performance may raise the intended center of gravity.
Extreme caution must be utilized when encountering
driving conditions which may cause vehicle imbalance
or loss of control. DRIVE SAFELY! Avoid abrupt
maneuvers: such as sudden sharp turns which could
cause a roll over, resulting in serious injury or death.
It is the customers responsibility to make sure that a
re-torque is performed on all hardware associated with
this suspension system after the first 100 miles of
installation. It is also the customers responsibility to
do a complete re-torque after every 3000 miles or after
every off road use.
After the original installation, Tuff Country EZ-Ride
Suspension also recommends having the alignment
checked every 6 months to ensure proper tracking,
proper wear on tires and front end components. Tuff
Country EZ-Ride Suspension takes no responsibility
for abuse, improper installation or improper suspension maintenance.
If you desire to return your vehicle to stock, it is the
customers responsibility to save all stock hardware.
Limited lifetime warranty
Notice to all Tuff Country EZ-Ride Suspension
customers: It is your responsibility to keep your
original sales receipt! If failure should occur on any
Tuff Country EZ-Ride Suspension component, your
original sales receipt must accompany the warranted
unit to receive warranty. Warranty will be void if the
customer can not provide the original sales receipt. Do
not install a body lift in conjunction with a suspension
system. If a body lift is used in conjunction with any
Tuff Country EZ-Ride Suspension product, your Tuff
Country EZ-Ride Suspension WARRANTY WILL BE
VOID. Tuff Country Inc. (“Tuff Country” ) suspension
products are warranted to be free from defects in
material and workmanship for life if purchased,
installed and maintained on a non-commercial vehicle;
otherwise, for a period of twelve (12) months, from the
date of purchase and installation on a commercial
vehicle, or twelve thousand (12,000) miles (which ever
occurs first). Tuff Country does not warrant or make
any representations concerning Tuff Country Products
when not installed and used strictly in accordance
with the manufacturer’s instructions for such
installation and operation and accordance with good
installation and maintenance practices of the
automotive industry. This warranty does not apply to
the cosmetic finish of Tuff Country products nor to
Tuff Country products which have been altered,
improperly installed, maintained, used or repaired, or
damaged by accident, negligence, misuse or racing.
(“Racing is used in its broadest sense, and, for
example, without regards to formalities in relation to
prizes, competition, etc.) This warranty is void if the
product is removed from the original vehicle and
re-installed on that or any other vehicle. This warranty
is exclusive and is in lieu of any implied warranty of
merchantability, fitness for a particular purpose or
other warranty of quality, whether express or implied,
except the warranty of title. All implied warranties are
limited to the duration of this warranty. The remedies
set forth in this warranty are exclusive. This warranty
excludes all labor charges or other incidental of
consequential damages. Any part or product returned
for warranty claim must be returned through the
dealer of the distributor from whom it was purchased.
Tuff Country reserves the right to examine all parts
returned to it for warranty claim to determine whether
or not any such part has failed because of defect in
material or workmanship. The obligation of Tuff
Country under this warranty shall be limited to
repairing, replacing or crediting, at its option, any part
or product found to be so defective. Regardless of
whether any part is repaired, replaced or credited
under this warranty, shipping and/or transportation
charges on the return of such product must be prepaid
by the customer under this warranty.
Important information that needs to be read before
installation begins:
Due to the different variation of the stock strut spring
rate, height after installation of the spacer may vary.
Any questions please feel free to contact Tuff Country
or your local Tuff Country dealer.
Tuff Country recommends a 32x10.50 tire package
once part # 52907 has been installed. If larger than a
32x10.50 tire is installed on your vehicle in conjunction with part # 52907; Tuff Country assumes no liability and the warranty will be VOID.
New longer rear shocks are not required but highly
recommended once part # 52907 has been installed on
your vehicle and the rear shocks need to be ordered
as a separate part #. If you have not already ordered
your rear shocks, please feel free to contact Tuff
Country or your local Tuff Country dealer and order
your rear shocks. Tuff Country recommends installing
a 26” fully extended shock in the rear.
Before installation begins, Tuff Country EZ-Ride
Suspension highly recommends that the installer
performs a test drive on the vehicle. During the test
drive, check to see if there are any uncommon sounds
or vibrations. If uncommon sounds or vibrations occur
on the test drive, uncommon sounds or vibrations will
be enhanced once the suspension system has been
installed. Tuff Country EZ-Ride Suspension highly
recommends notifying the customer prior to
installation to inform the customer of these issues if
they exist.
Tuff Country EZ-Ride Suspension packages (2) sets of
instruction sheets with this box kit. (1) is for the
installer and (1) is for the customer. The (1) for the
customer has some post installation procedure
literature and it is the installers responsibility to make
sure that the customer receives a copy of the
installation manual along with the literature.
Tuff Country EZ-Ride Suspension recommends a wall
mounted strut compressor be used when performing
the steps that talk about installing the strut spacer into
the strut. If you do not have a wall mounted strut compressor, please have these steps performed by your
local Toyota Dealership
Hardware bag 52907NB1 includes:
Front end installation:
Description
Quantity
S10090 (1.000” x .500” x .400” sleeve)
M8WA (8 mm flat washer)
M835B (8 mm x 35 mm bolt)
126B (1/2” x 6” bolt)
12UN (1/2” unitorque nuts)
BU30000 (front strut stud / hardware bag)
M850HEXB (8 mm x 50 mm hex bolt)
S10051 (1.750” x .510” x .950”)
S10105 (1.000” x .385” x 1.300”)
916HN (9/16” u-bolt washers)
2
2
2
2
2
1
1
2
1
1
1. To begin installation, block the rear tires of the vehicle so
that the vehicle is stable and can’t roll backwards. Safely lift
the front of the vehicle and support the frame with a pair of
jack stands. Place a jack stand on both the driver and passenger side. Next, remove the wheels and tires from both
sides.
2. Remove the stock front skid plate and save the stock
skid plate and hardware for later re-installation.
3. Working on the driver side, remove the stock sway bar
end link from the stock knuckle. Save the hardware for later
re-installation. Repeat procedure on the passenger side.
Hardware bag CB38 includes:
Description
CB381 (3/8” centering bolt)
38FN (3/8” fine nut)
Quantity
2
2
Recommended tools selection:
Wall mounted strut compressor
Torque wrench
Standard socket set
Standard wrench set
Metric socket set
Metric wrench set
Tape measure
Hydraulic floor jacks
4. Working on the driver side, remove the cotter pin that
connects the knuckle to the upper control arm. Save the
cotter pin for later re-installation. Loosen but do not remove
the castle nut that secures the knuckle to the upper control
arm. Carefully break the stock taper in the upper control
Please follow instructions carefully:
arm and the knuckle. Once the taper has been broke,
remove the castle nut and set aside for later re-installation.
Before installation begins, measure from the center of Repeat procedure on the passenger side.
the hub, to the bottom of the fender well, and record
measurements below.
Pre-installation measurements:
Driver side front:_______________________________
Passenger side front:___________________________
Driver side rear:________________________________
Passenger side rear:____________________________
At the end of the installation take the same
measurements and compare to the pre-installation
measurements.
Post installation measurements:
Driver side front:______________________________
Passenger side front:__________________________
Driver side rear:_______________________________
Passenger side rear:___________________________
5. Working on the driver side, place a reference mark on
the driver side strut. This is done so that the driver side strut
will be put back into the driver side of the vehicle. Working
on the driver side, remove the (3) upper nuts that connect
the strut into the stock location. The stock nuts may be discarded. Repeat procedure on the passenger side.
8. Carefully compress the driver side strut until the upper
bearing plate can be removed. Remove the nut and hardware from the upper bearing plate and save the hardware
for later re-installation. Set the driver side strut aside for
later re-installation.
9. Working on the driver side strut, remove the upper bearing plate from the coil spring. Remove the rubber isolator
from the upper bearing plate and aside for later re-installation.
10. Locate (3) new 10 mm x 2 1/4” strut stud bolts from
hardware bag BU30000 that are packaged in hardware bag
52907NB1. Working on the driver side upper bearing plate
and using a hammer, remove the (3) studs located in the
upper bearing plate and discard. Carefully install the new
10 mm x 2 1/4” strut stud bolts into the upper bearing plate.
6. Working on the driver side, remove the lower bolt that
connects the strut to the lower mounting location and save
the hardware for later re-installation. Special note: During
removal of the stock bolt, take special care not to damage the CV boot. Also, make a mental note on which
way the bolt is removed, it needs to be re-installed the
same way that it was removed. Remove the strut assembly from the stock location and set aside for further instructions. Repeat procedure on the passenger side.
Tuff Country EZ-Ride Suspension recommends a wall
mounted strut compressor be used when performing
the steps that talk about installing the pre load spacer
into the strut. If you do not have a wall mounted strut
compressor, please have these steps performed by
your local Toyota Dealership
7. Place the driver side strut into a wall mounted strut compressor. Scribe a line on the bearing plate, rubber isolator
and the top coil of the strut. Also, scribe a line on the bottom coil and the bottom bracket on the
strut. Special note: If
these steps are not
performed properly
re-installing
the strut back into
the vehicle will be
difficult.
11. Locate (1) new pre-load spacer, the newly modified
upper bearing plate, the rubber isolator, the stock strut and
hardware. Place the preload spacer on the modified bearing plate. Special note: Make sure that the cut outs in the
new pre-load spacer fit over the head of the newly installed
studs. Then install the rubber isolator onto the new pre-load
spacer. Carefully compress the coil spring enough so that
the preload spacer can be installed. Install the new strut
spacer and isolator into the strut and secure the upper
bearing plate to strut assembly using the upper strut hardware. Make sure to use thread locker or loctite and torque
to 65 ft lbs. Also, make sure that the lines that were
scribed on the bearing plate, rubber isolator, the coil
spring and the bottom bracket on the strut earlier in the
installation all line up.
12. Locate (1) new strut spacer and (3) new 10 mm nylon
lock nuts from hardware bag BU30000 that are packaged in
hardware bag 52907NB1. Working on the driver side, install
the new strut spacer on top of the new strut assembly and
install into the stock strut upper location. Secure the top of
the new strut assembly using the new 10 mm nylon nuts.
Make sure to add thread locker or loctite and torque to 36 ft
lbs. Special note: If needed, carefully cut off the excess
thread off of the 10 mm x 2 1/4” studs.
13. Locate the lower strut bolt and hardware. Secure the
strut assembly into the lower location using the stock hardware. Make sure to use thread locker or loctite. Torque to 75
ft lbs. Special note: When installing the lower bolt, make
sure that the bolt is installed the way it was removed.
Facing towards the front of the vehicle. Also, take special care not to damage the stock CV boot when reinstalling the stock hardware.
14. Repeat steps 7 - 13 on the passenger side strut assembly.
15. Locate the upper control arm castle nut and cotter pin.
Working on the driver side, secure the knuckle to the upper
control arm using the stock hardware. Torque and install the
cotter pin. Special note: when torquing the castle nut, DO
NOT loosen the castle nut to get the holes lined up to
install the cotter pin, tighten the castle nut until the
holes line up and the cotter pin can be installed. Repeat
procedure on the passenger side.
16. Locate the sway bar hardware. Working on the driver
side, secure the stock sway bar to the knuckle using the
stock hardware and torque to 65 ft lbs.
17. Working on the driver side, carefully remove the stock
bolt that connects the front differential brackets to the front
cross member. Save the stock oversize washer. The stock
bolt and nut may be discarded. Repeat procedure on the
passenger side..
stands. Place the jack stands on both the driver and the passenger side. Make sure that the parking brake is not set.
18. Locate (2) new S10051, (2) 1/2” x 6” bolts and (2) 1/2” Next, remove the tires and wheels from both sides.
unitorque nuts from hardware bag 52907NB1. Also, locate
the stock oversize washers that were removed earlier in the 22. Working on the driver side, remove the shock from the
installation. Carefully lower down on both hydraulic floor upper and lower location. Set the shock and the stock hardjacks allowing enough room for the new front differential ware aside for later re-installation. New longer rear shocks
spacers to be installed. Working on the driver side, install the are not required but highly recommended once part #
new front differential spacer between the front differential 52907 has been installed on your vehicle and the rear
brackets and the stock front cross member and secure using shocks need to be ordered as a separate part #. If you
the new 1/2” x 6” bolt, 1/2” unitorque nut and the stock over have not already ordered your rear shocks, please feel
size washer. Do not tighten at this point. Repeat proce- free to contact Tuff Country or your local Tuff Country
dure on the passenger side. Move back to the 1/2” x 6” dealer and order your rear shocks. Tuff Country recombolt on the driver and passenger side and add some mends installing a 26” fully extended shock in the rear.
thread locker or loctite and torque to 80 ft lbs. Carefully Repeat procedure on the passenger side.
remove both hydraulic floor jacks front under the front differential.
23. Working on the driver side, remove the stock brake line
bracket from the driver side of the rear axle. The stock bolt
may be discarded.
24. Position a pair of hydraulic floor jacks under the rear differential. Place one jack stand on the driver side and one on
the passenger side. Raise up on both hydraulic floor jacks at
the same time until they make contact with the rear differential. Working on the driver side, remove the rear u-bolts. The
rear u-bolts and the u-bolt nuts may be discarded, save the
u-bolt washers. Place the u-bolt plate and the bump stop
aside for later re-installation. Repeat procedure on the passenger side.
19. Locate (2) S10090 sleeves, (2) 8 mm x 35 mm bolts and
(2) 8 mm” USS flat washers from hardware bag 52907NB1.
Also, locate the stock skid plate and the stock skid plate
hardware. Re-install the stock skid plate into the stock upper
location using the stock hardware. Do not tighten at this
point. Secure the lower portion of the skid plate to the stock
location using the new 8 mm x 35 mm bolts, 8 mm USS flat
washers and make sure to install the new spacer between
the stock skid plate and the stock location. Torque the new 8
mm x 35 mm bolt and stock hardware to 12 ft lbs.
20. Re-install the tires and wheels and torque the lug nuts to
the proper torque specifications. Carefully lower the vehicle
to the ground.
Front installation complete!
Rear end installation:
21. To begin installation, block the front tires of the vehicle so
that the vehicle is stable and can’t roll forward. Safely lift the
rear of the vehicle and support the frame with a pair of jack
25. Carefully lower down on both hydraulic floor jacks at the
same time until the stock rear spring assembly separates
from the rear axle to allow enough room for the new rear
add-a-leaf to be installed.
26. Working on the driver side, place a pair of “C” clamp vise
grips on each side of the centering bolt. Carefully remove the
centering bolt and nut and discard. Carefully remove the “C”
clamp vise grips that are holding the springs together.
Special note: Be careful when removing the “C” clamps,
the springs are under tension and can be dangerous.
Repeat procedure on passenger side.
27. Locate (2) new rear add-a-leafs. Locate (2) 3/8” centering bolts and (2) 3/8” fine nut from hardware bag CB38.
Install the new rear add-a-leaf into the spring assembly.
Secure the new rear add-a-leaf to the spring assembly using
the new 3/8” center bolt and nut. Torque to 28 ft. lbs.
Special note: If the new add-a-leaf that you are installing
into the stock spring assembly has an offset center hole
location, place the longest side of the add-a-leaf
towards the rear of the vehicle. Also the new add-a-leaf
should be installed into the stock spring assembly in
progression in order, from longest to shortest. The new
add-a-leaf should be installed between the stock overload and the stock spring pack. The stock overload is
usually the un-arched spring at the bottom of the stock
leaf pack. Also, Tuff Country EZ-Ride Suspension recommends not using any air tools when installing the
new add-a-leafs into the stock spring assembly. If air
tools are used the centering bolt may strip, causing the
stock spring assembly to come apart. With a suitable 32. Re-install the tires and wheels and torque to lug nuts to
cutting tool, cut off the extra thread from the new cen- proper torque settings. Carefully lower the vehicle to the
tering bolt. Repeat procedure on passenger side.
ground.
Check and double check to make sure that all steps
were performed properly. After the completion of the
installation, Tuff Country EZ-Ride Suspension recommends taking the vehicle to an alignment shop and having a proper front end alignment performed.
28. Carefully raise up on both hydraulic floor jacks at the
same time until the stock rear axle makes contact with the
stock spring assembly.
29. Locate (4) new 9/16” x 2 9/16” x 8 5/8” square u-bolts.
Locate (8) new 9/16” u-bolt high nuts from hardware bag
52907NB1. Also, locate the u-bolt plates, bump stops and
the u-bolt washers. Working on the driver side, re-install the
u-bolt plates and bump stops into the stock location. Secure
the spring assembly to the axle using the new u-bolts, u-bolt
high nuts and the stock u-bolt washers. Torque to 85 ft lbs.
Repeat procedure on the passenger side.
Tuff Country EZ-Ride Suspension recommends that a
complete re-torque is done on all bolts associated with
this suspension system. It is the customers responsibility to make sure that a re-torque is performed on all
hardware associated with this suspension system after
the first 100 miles of installation. It is also the customers
responsibility to do a complete re-torque after every
3000 miles or after every off road use. Neglect of following these steps could cause brackets to come loose and
cause serious damage to the suspension system and to
the vehicle.
Tuff Country EZ-Ride Suspension packages (2) sets of
instruction sheets with this box kit. (1) is for the installer
and (1) is for the customer. The (1) for the customer has
some post installation procedure literature and it is the
installers responsibility to make sure that the customer
30. Locate (1) 8 mm x 50 mm hex head bolt and (1) S10105 receives a copy of the installation manual along with the
from hardware bag 52907NB1. Working on the driver side, literature.
secure the new spacer sleeve between the stock brake line
bracket and the stock rear axle using the new 8 mm x 50 mm
bolt. Special note: make sure to use thread locker or loctite and torque to 15 ft lbs.
52907-01 / Qty. 2
Strut spacer
New longer rear shocks are not required but highly recommended once part # 52907 has been installed on your
vehicle and the rear shocks need to be ordered as a separate part #. If you have not already ordered your rear
shocks, please feel free to contact Tuff Country or your
local Tuff Country dealer and order your rear shocks.
Tuff Country recommends installing a 26” fully extended
shock in the rear.
31. Locate the rear shocks, the upper and lower shock hardware. Working on the driver side, install the rear shocks in
the lower location and secure using the stock hardware.
Torque to 65 ft lbs. Secure the shock into the upper location using the hardware and torque to 18 ft lbs. Carefully
remove both hydraulic floor jacks from under the vehicle.
52907-02 / Qty. 2
Pre-load spacer
Tacoma carrier bearing drop
spacers
Carefully support the rear driveshaft with a suitable jack, then remove the 2 OE bolts
that hold the carrier bearing to the crossmember. Once those bolts have been removed
you can lower the driveshaft down enough to install the new spacer sleeves and re-secure using the new 10mm x 50 mm bolts with flat and lock washers. Torque to 42 ftlbs.