ZBROZ K25-PL1032-0 Stage 1 Dual Rate Spring Kit Walker Evans Shock Instruction Manual
- June 3, 2024
- ZBROZ
Table of Contents
**ZBROZ K25-PL1032-0 Stage 1 Dual Rate Spring Kit Walker Evans Shock Instruction Manual
**
Safety Warning
Read instructions thoroughly and completely before beginning installation.
Zbroz Racing is not responsible for damage or failure resulting from improper
installation.
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 maneuvers.
Zbroz Racing 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 installation of any Zbroz Racing 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 supported on a two post vehicle lift with safety jacks. Use caution during all disassembly and assembly steps to insure suspension components are not over extended 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. Zbroz Racing Suspension recommends the use of an OE Service Manual for model/year of vehicle when disassembly 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.
Installation Instructions
Spring Kit For Walker Evans Needle Shocks
Application: Polaris RZR 4 PRO XP (2020) *4 Seater Models
| BILL OF MATERIALS | QTY |
|---|---|
| Front Main Springs | 2 |
| Front Tender Springs | 2 |
| Front Spring Dividers | 2 |
| Rear Main Springs | 2 |
| Rear Tender Springs | 2 |
| Rear Billet Cross Over Rings | 2 |
| Tuned By Reservoir Decals | 4 |
TOOLS REQUIRED
Floor Jack Or Lift
1/4” Punch
3/8” Punch
15mm Wrench/Socket Set
18mm Wrench/Socket Set
3/32” Allen Wrench
Flathead Screwdriver
Rubber Mallet
Installation instructions are shown on an RZR XP 1000, follow same installation process.
This spring kit can be installed with shocks on your RZR by using a floor jack
or lift. Select a flat install location. If using floor jack, always make sure
to block tires – work safely!
If removing shocks for installation. Back OEM preload rings on all shocks
before removing.
Use a solid mounted vice for installation.
Follow These Steps First:
- Measure current ride height at front center frame point and rear center frame point.
- Write down these measurements for before and after installation notes.
- If removing shocks, label each shock to eliminate installation problems with the piggyback reservoirs positioning/clocking when reinstalling.
- Clean shocks! Remove all dirt and mud.
- Lift RZR using a floor jack or lift and remove tires.
Rear Shocks Spring Kit Installation
-
Move bump stop up 3 inches for removal of OEM lower spring retainer. Use flathead screwdriver as shown.
-
Rotate OEM Preload ring counter clockwise until the OEM spring stack is loose.
-
Use 3/8” punch.
-
Disconnect lower shock bolt from trailing arm. Swing lower shock rearward and out.
-
Push up on spring stack to remove OEM lower spring retainer and OEM rock guard.
-
Remove OEM spring stack. Reuse OEM spring divider, OEM lower spring retainer and OEM rock guard.
-
Install new two piece rear billet cross over ring to shock body.
-
Use 3/32” allen wrench to secure cross over ring to shock body. Do not tighten, you will set final cross over point in final step.
Make sure cross over ring spins freely to avoid cross threading. -
Install new rear tender spring.
-
Install OEM spring divider with long end pointing down.
-
Install new main spring, OEM rock guard and OEM lower spring retainer.
-
Reconnect shock to trailing arm.
Torque shock bolt at 42ft-lbs. -
Set “Zero Preload” by pressing down on trailing arm and holding to fully extend internal bump stop spring. Rotate preload ring clockwise until spring stack contacts preload ring.
-
Set “Preload” by rotating Preload ring clockwise 6 full rotations. Use 3/8” punch if difficult to rotate by hand.
Additional Preload may be needed depending on after-market accessories (bumper, cage, tire carrier, stereo system). -
Set cross over ring by measuring 4 3/4” from top of spring divider. Then tighten cross over ring screws.
-
Set compression adjuster knob to mid range. Adjust as needed for driving terrain. 4 3/4”
-
Install “Tuned by Zbroz” reservoir decals.
Repeat steps to install spring kit to other rear shock. -
Move bump stop up 3 inches for removal of OEM lower spring retainer.
Use flathead screwdriver. -
Rotate OEM Preload ring counter clockwise all the way to top of threaded shock body.
Use 1/8” punch. -
Disconnect lower shock bolt from upper a-arm.
-
Push up on spring stack to remove OEM lower spring retainer.
-
Remove OEM spring stack. Discard OEM springs and OEM spring divider.
-
Install new tender spring with progressive or tighter coils towards top. Install new spring divider with long end pointing up.
-
Install new main spring and OEM Lower Spring Retainer.
-
Reconnect shock to a-arm.
Torque shock bolt at 42ft-lbs. -
Set “Zero Preload” by pressing down on a-arm and holding to fully extend internal bump stop spring. Rotate preload ring clockwise until spring stack contacts preload ring.
-
Set “Preload” by rotating Preload ring clockwise an additional 4 full rotations. Use 1/8” punch if difficult to rotate by hand.
*Additional Preload may be needed depending on weight of after-market accessories (bumper, winch, cage, etc). -
Set compression adjuster knob to mid range.
Adjust as needed for driving terrain. -
Install “Tuned by Zbroz” reservoir decals.
Repeat steps to install spring kit to other front shock.
Final Spring Kit Installation
Optional: Disconnect And Remove Front Sway Bar
Due to this progressive dual rate spring setup, your front sway bar is no longer necessary for most riding terrain applications.
Install Tires And Torque Lug Bolts As Follows:
Torque Wheels to OE specs as shown in your owners manual
Check Ride Height Setup:
Drive RZR around at slow speed, turning left and right to settle spring kit. Coast to stop, do not apply brakes to ensure spring kit is naturally settled. Measure and compare ride height measurements with pre-install measurements. Adjust by adding or removing Preload.
How to Adjust:
With tires on, use a floor jack or lift so that shocks are fully extended and
adjust as follows:
If Ride Height is too TALL:
Rotate OEM Preload ring 2 full counter clockwise rotations, settle spring kit
and check.
If Ride Height is too LOW:
Rotate OEM Preload ring 2 full clockwise rotations, settle spring kit and
check.
Check Rear Cross Over Ring Setup:
With Preload and ride height set, check measurement of rear cross over rings. The distance between the cross over ring and spring divider determines when the main spring in engaged.
How to Adjust:
With tires on, use a floor jack or lift so that shocks are fully extended and
adjust as follows:
General Recreation for Mountain Trail, Desert/Dune and Rock Crawling:
Set cross over ring at 4 3/4” from spring divider. This will deliver increased
control, plush ride feel, roll stability and bottoming resistance.
Low Speed Mountain Trail and Rock Crawling:
Move cross over ring away from spring divider to engage main spring slower.
This will deliver a plush ride feel and maximum articulation at slow speeds.
Do not exceed 5 1/2”.
High Speed Desert/Dune and Mountain Trail Driving:
Move cross over ring closer to spring divider to engage main spring faster.
This will deliver more increased bottoming resistance and G-Out control.
Check Ride Height and Cross Over Setup after the first 200 miles of use and adjust as needed.
Results of Installing this Zbroz Racing Spring Kit
Ride Height Gain: average ride height increase is 2”
Aggressive Stance: allows fitment of larger tires
Tune-able Progressive Spring Setup: soaks up small bumps better before
initiating main springs
Bottoming resistance: increased bottoming resistance with tune-able cross over
rings
Reduced body roll: tuned spring setup delivers increased control when turning
and cornering
Race inspired durability: premium quality / high tensile / light weight /
springs that won’t sag
WWW.ZBROZRACING.COM | 435-753-7774 | [email protected]
Limited Lifetime Warranty
Zbroz Racing will warranty to the original purchaser any failed Zbroz Racing suspension product in the event of failure due to construction or material failure of the product. You will be required to contact Zbroz Racing customer service with description and photos that resulted in failure.
Zbroz Racing builds suspension products to meet and exceed your expectations in quality, performance and durability. All Zbroz Racing suspension products are rigorously tested during development and prototype parts are pushed to the limit by professional industry athletes, backcountry athletes and race teams.
Zbroz Racing Limited Lifetime Warranty excludes the following wear parts as these parts are considered defective when worn: Ball Joints, Bushings, Bump Stops, Tie Rod Ends, Heim Joints, Shock Absorbers
This product warranty is voided if the vehicle is not aligned after kit installation and proper maintenance is routinely done.
Product purchased directly from Zbroz Racing 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 Zbroz Racing packaging. Please call 435-753-7774 to get an RGA# for any return. Customer is responsible for shipping costs back to Zbroz Racing. Returns without RGA# will be refused. Contact Zbroz Racing directly about any potentially defective parts prior to removal from vehicle.
Zbroz Racing is NOT responsible for any subsequent damages to any related vehicle parts due to misuse, abuse, improper installation, or lack of maintenance. Furthermore, Zbroz Racing reserves the right to change, modify or cancel this warranty without prior notice.
If your Zbroz Racing product has a damaged or is missing parts, please contact
customer service directly and a new replacement part will be sent to you
immediately.
Warranty inquiries, please supply photos and description that resulted in
failure to
[email protected]
435-753-7774
Mon-Fri 8am-5pm (MST)
[email protected]
www.zbrozracing.com
Please keep these instructions for future reference.