The newly released transparent Front Axle Steering Assembly for UDIRC UCX2405 has been a hit with many players. If you’re interested in purchasing one, click the link below.

Buy: Front Axle Steering Assembly UCX24-P087A

The one above is the UDIRC UCX2405 Pro Panda Edition, a co-branded product with a specially customized beautiful paint job and fine workmanship, making it very suitable for outdoor off-roading.

Next, let me walk you through how to replace the door bridge assembly on a Snow Leopard climbing vehicle.

First, you’ll need to gather some tools: a 1.27mm hex wrench, a 1.5mm hex wrench, a 5.0mm socket, and most importantly, the Front Axle Steering Assembly.

Hex wrench 1.27mm: Remove drive shaft connection screws; install Y-bracket and axle connection screws

Buy: H1.27mm Hexagon Socket Screwdriver

Hex wrench 1.5mm: Remove chassis link and shock absorber mounting screws, Y-bracket and axle mounting screws; install body shell, drive shaft mounting screws, chassis link and shock absorber mounting screws

Socket 5.0: Remove wheel hub nuts from tires

Next up is the disassembly sequence~

Tire Removal: Use a 5.0mm socket to remove the hub nuts and detach all tires from the climbing vehicle, preparing for subsequent front and rear axle disassembly.

Front and Rear Axle Removal (Procedure identical for both axles due to symmetrical chassis design)

Step 1: Using a 1.5mm hex wrench, remove the connecting screws securing the chassis links and shock absorbers on both sides, disconnecting the chassis from the shocks and links.

Step 2: Continue using the 1.5mm hex wrench to remove the connecting screws between the Y-shaped bracket and the axle, separating the Y-bracket from the axle.

Step 3: Switch to a 1.27mm hex wrench to remove the connecting screws of the drive shaft. At this point, the entire axle assembly can be fully detached.

Removing the Body Shell and Servo Connectors

First, remove the four screws on both sides of the body shell (the tool is not explicitly specified; based on other steps, an appropriate screwdriver is presumed). Separate the body shell from the chassis.

Refer to the wiring diagram and disconnect the servo connectors. At this point, you will have two axle assemblies ready for replacement.

Now that the removal steps are complete, we’ll proceed to install the new door frame kit.

First, complete the wiring harness installation for the new door bridge kit.

Reinstall the body shell: Using a 1.5mm hex wrench, reattach the body shell to its corresponding position on the chassis.

Y-Bracket and Axle Installation: Using a 1.5mm hex wrench, secure the connecting screws for the Y-bracket and axle to fix their positions.

Driveshaft Installation: Use a 1.27mm hex wrench to install the driveshaft connecting screws. Note: The cross-shaped holes on the driveshaft must align perfectly in a straight line to prevent installation errors that could affect performance.

Chassis Linkage and Shock Absorber Installation: Using a 1.5mm hex wrench (refer to disassembly tools), install the connecting screws for both sides of the chassis linkage and shock absorbers, restoring the connection between the chassis, shock absorbers, and linkages.

Rear Axle Installation: Complete all rear axle installation steps following the same procedure as the front axle. Ensure symmetrical and secure mounting of both axles.

Wheel Reinstallation: Reattach the tires to the wheel hubs to finalize the entire door axle assembly replacement.

I’ve now covered the entire process. Next, let me walk you through the issues players might encounter during installation.

What are the key operational details during front and rear axle removal? Why are these details important?

• The key operational details and their importance are as follows:
• Utilizing the symmetrical chassis structure, the removal methods for both front and rear axles are identical. This detail simplifies the operational process and prevents confusion caused by differing procedures for each axle, making it particularly suitable for beginners to understand;
• Use the correct size screwdriver for specific bolts (e.g., 1.27mm for drive shaft bolts, 1.5mm for chassis link bolts). Using the wrong tool size may cause stripped threads or tool damage, affecting subsequent assembly and model performance;
• Remove the servo connectors only after detaching the body shell. The body shell obstructs access to the connectors. Removing the shell first ensures smooth connector removal and prevents forced extraction that could damage wiring.

When installing the drive shaft connecting bolts, there is one special precaution to note. What is this precaution? What consequences might arise if this precaution is ignored?

The special note is that the cross-shaped holes on the drive shaft must be aligned in a straight line. If this note is ignored, it will cause the drive shaft to be installed out of alignment. This, in turn, will result in uneven stress distribution on the drive shaft during the vehicle’s operation.

This may lead to transmission stuttering, abnormal noises, and in severe cases, damage to the drive shaft assembly. It could even affect the entire power transmission system of the vehicle, causing it to be unable to operate normally.

Today I showed everyone how to replace the front axle steering assembly. Stay tuned for what I’ll cover next time~ If there’s anything you’d like to learn about, feel free to leave a comment below.