ARM LIFTMANUAL KIT LIFT LONG KIT ASSEMBLY ASSEMBLY INSTRUCTIONS
Introduction Thank you for purchasing the Traxxas TRX-4 Long Arm Lift Kit for added ground clearance and capability. This kit includes everything you need to properly install a massive lift under your TRX-4 including long-arm links, longer aluminum shocks, taller springs, extended driveshafts, and a revised front servo mount to maintain proper steering geometry. If you have any questions or concerns about installing your kit, please contact our customer support team for fast, friendly answers and solutions.
Introduction ITEMS YOU WILL NEED • Hex driver • 4-way wrench • Small flat blade screwdriver • Needle nose pliers • Safety glasses These items can be purchased from your hobby dealer. If you have any questions, call the Traxxas Technical Support Line toll-free at: 1-888-TRAXXAS (1-888-872-9927)* Technical support is available Monday through Friday from 8:30am to 9:00pm central time. Technical assistance is also available at Traxxas.com.
Suspension Link Guide See the illustrations below for correct suspension link measurements for your model’s wheelbase. SHORT WHEELBASE 312mm (12.3") (Traxxas Models 82046-4, 82016-4) Front Upper Link 42.65mm 85.44mm Front Lower Suspension Link 79.47mm 118.47mm Rear Lower Link 90.45mm 129.45mm Rear Upper Link 90.45mm 133.24mm Note: Links are supplied assembled for the short (312mm) wheelbase.
Suspension Link Guide LONG WHEELBASE 324mm (12.7") (Traxxas Models 82056-4, 82066-4) Front Upper Link 42.65mm 85.44mm Front Lower Suspension Link 79.47mm 118.47mm Rear Lower Link* 90.45mm 140.95mm Rear Upper Link* 90.45mm 144.74mm *Note: Rear links require installation of included extended rod ends for 324mm long wheelbase use.
A. Assemble GTS Shocks 1 2 Fill with shock oil Unscrew cap 3 4 Slowly move piston to remove excess air 5 6.7mm (.26") Keep lower spring retainer installed. Add oil to reach the proper level. (#8140R red version shown) 6 • TRAXXAS Note: Shaft should be fully compressed when cap is installed.
A. Assemble GTS Shocks GTS Shock Exploded View Shock Cap Upper Spring Retainer Shock Spring (0.47 rate)* Exercise shock to make sure it compresses fully. If it does not, it is overfilled.
B. Remove the front and rear center driveshaft assembly Front driveshaft removal 3x10mm Screw Pin 3x10mm Screw Pin Rear driveshaft removal 3x10mm Screw Pin 3x10mm Screw Pin Note: Some TRX-4 models are not equipped with chassis mounted wheel wells; however, the installation instructions are the same.
C. Remove the T-Lock cables from the shift servos 1 2 2.6x8mm BCS 2.6x8mm BCS 3 Unscrew and remove the ball cups from the T-Lock cables. Retain the ball cups.
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H. Remove the differential cover from the front and rear axle assemblies Rear Axle Assembly shown. Repeat for Front Axle Assembly. 2.5x16mm CS 2.
I. Remove the locking fork from the locking slider 1 Rear Axle Assembly shown. Repeat for Front Axle Assembly. 3 WARNING Remove T-Lock Cable Safety glasses are recommended to prevent eye injury. Use a small flat blade screwdriver to remove E-clip from axle housing.
J. Install the new T-Lock cable in the axle assemblies 1 Assemble locking fork and kit locking cable 4 Use needle nose pliers to set E-clip between locking cable and axle housing. 5 Use needle nose pliers to press E-clip onto locking cable. 2 3 Rear Axle Assembly shown. Repeat for Front Axle Assembly. 16 • TRAXXAS Install the longer 207.9mm cable in the Rear Axle Assembly and the shorter 168.9mm cable in the Front Axle Assembly.
K. Install the differential cover on the axle assemblies Rear Axle Assembly shown. Repeat for Front Axle Assembly. Note: Move the end of the locking cable in and out to verify the locking fork moves back and forth on its pivot. 2.5x16mm CS 2.
L. Install the new lift kit suspension links and GTS shocks on the rear axle assembly 3x30mm BCS (Rear Upper Links) Right Rear Shock Assembly 3x27mm BCS (Shocks and Rear Lower Link) See the Suspension Link Guide on pages 4 and 5 for correct suspension link measurements for your model’s wheelbase.
M. Install the new lift kit suspension links and GTS shocks on the front axle assembly 3x15mm BCS Left Front Shock Assembly Front Upper Suspension Link See the Suspension Link Guide on pages 4 and 5 for correct suspension link measurements for your model’s wheelbase. 3x27mm BCS Right Front Shock Assembly Front Lower Suspension Links (118.
N. Remove the battery plate and existing steering servo mount. Skip this step if your vehicle is not equipped with a front battery plate.
O. Install new lift kit steering servo mount and battery plate spacers Skip this step if your vehicle is not equipped with a front battery plate.
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Q. Reattach rear axle assembly to chassis Install upper and lower suspension links to chassis Install rear shocks to fenders from top of chassis* 3x23mm BCS (Rear Shock) 3x25mm BCS (Rear Upper Link) 3x25mm BCS (Rear Upper Link) 3x15mm BCS (Rear Lower Link) 3x15mm BCS (Rear Lower Link) (#8140R red version shown) 3x23mm BCS (Rear Shock) *Short (312mm) wheelbase shown; shock mounting position will vary depending on wheelbase configuration.
R. Reconnect T-Lock cables to shift servos 1 2 Differential Cable Screw ball cup on until all threads are hidden Axle Ball Cup 3 4 2.6x8mm BCS 2.6x8mm BCS It is okay to slightly rock horn to align ball cup. Do not turn servo shaft by hand or you could damage the servo.
S. Remove stock half shafts and assemble new driveshafts Replace the stock half shafts with the supplied half shafts. FRONT DRIVESHAFT SHORT 3x6mm BCS 3x6mm BCS MEDIUM REAR DRIVESHAFT - SHORT WHEELBASE 312mm (Traxxas Models 82046-4, 82016-4) MEDIUM 3x6mm BCS 3x6mm BCS LONG REAR DRIVESHAFT - LONG WHEELBASE 324mm (Traxxas Models 82056-4, 82066-4) MEDIUM 3x6mm BCS Note: Orient and assemble the center drive shafts as shown to correctly phase the output drives.
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U. Remove 11-T pinion gear and install new 10-T pinion gear on motor shaft 2 10-T pinion gear maintains original performance with larger 2.2” tires Gearing access 3x8mm BCS 3x8mm CS 1 3x8mm BCS 3x4 GS 3x8mm CS 4 Mesh gear teeth, and then tighten set screw Upper Gear Cover 3 A B C D E F G H Pinion gear should be 1-1.
Notes 30 • TRAXXAS
Notes TRAXXAS • 31
PART #8140, 8140R, 8140X 190712 KC2561-R01 6250 TRAXXAS WAY, McKINNEY, TEXAS 75070 1-888-TRAXXAS
