🧰 These are the core tools used by RC hobbyists for assembling and maintaining oil shocks.
🛠️ 1. Shock Shaft Pliers
Why they’re essential:
The most important tool for gripping shock shafts without scratching them.
- Prevents damage to the shaft
- Ensures smooth piston movement
- Makes installing rod ends easier
- Stops leaks caused by scratched shafts
A must‑have for any RC builder.
🧴 2. Shock Oil (Multiple Weights)
Used for tuning damping.
Best uses:
- Thicker oil = more damping
- Thinner oil = faster rebound
- Different weights for front/rear balance
Common weights: 300–600 cSt for Tamiya touring cars.
🧽 3. Shock Stand / Bleeding Stand
Holds shocks upright while:
- Filling with oil
- Letting bubbles rise
- Bleeding air
- Setting rebound
This makes the build process cleaner and more consistent.
🔧 4. Hex Drivers / JIS Screwdrivers
Used for:
- Removing shocks from the chassis
- Opening shock caps
- Installing pistons and hardware
A good driver set prevents stripped screws.
🧵 5. Needle‑Nose Pliers
Used for:
- Installing e‑clips
- Holding pistons
- Adjusting spring retainers
Perfect for fiddly shock components.
🧼 6. Paper Towels & Brake Cleaner
Used for:
- Cleaning old oil
- Degreasing parts
- Removing dirt before rebuilds
Clean parts = leak‑free shocks.
⚠️ Safety Tips for Shock Building
- Never overtighten shock caps
- Keep oil away from eyes and mouth
- Dispose of old oil responsibly
- Don’t use pliers directly on shock shafts
- Wipe spills immediately — silicone oil is slippery
🛠️ Beginner Mistakes to Avoid
- Filling shocks too quickly (causes bubbles)
- Not letting oil settle
- Over‑tightening the cap
- Using pliers on the shaft
- Mixing oil weights accidentally
- Forgetting to check rebound balance
Avoid these and your shocks will feel dramatically smoother.
💡 Pro Tip
- For perfectly consistent shocks: Fill → let sit for 10 minutes → top up → bleed slowly → set rebound → cap.
- This removes 95% of air bubbles.
🏁 Final Thoughts
Shock building is one of the most rewarding parts of RC maintenance. With the right tools — shaft pliers, shock oil, a stand, and quality drivers — you can build smooth, consistent shocks that transform how your car handles.
Whether you’re racing, bashing or building a shelf queen, proper shock maintenance gives you:
- Better grip
- More stability
- Smoother cornering
- Longer component life
Add these tools to your RC toolbox and your suspension will feel better than ever.