VehiclesTraxxas TRX-4 DefenderShock service
Maintenance reference
Shock service
Traxxas TRX-4 Defender · 82056-4
82056-4 exact RTR edition in archived manual
← Vehicle service referenceStart with the correct reference
Exact fill, X-ring seal stack and shaft assembly. Check 90 mm between rod-end balls. Rebuild kit #8262 services two shocks; inspect seals before ordering.
- Oil replacement and GTS assembly, PDF pp. 25-26 (opens in a new tab)
Manufacturer procedure · 82056-4 exact archived owner manual
- Conditional two-shock rebuild, PDF p. 30 (opens in a new tab)
Manufacturer procedure · 82056-4 exact archived owner manual
Parts, tools and consumables
Listed in the reference
- SAE-30W silicone shock oil, exact manual baselineconsumable
No cross-brand wt, SAE or cSt conversion.
Requirement source, PDF p. 25 (opens in a new tab)
Replace or use as needed
- GTS two-shock rebuild kitpart
Rebuild kit, TRX-4® shocks (x-rings, o-rings, pistons, bushings, e clips, rod ends, and travel limiters)
For worn or leaking seals; a two-shock kit is not the entire vehicle.
Requirement source, PDF p. 30 (opens in a new tab)
Part links open an exact-model OEM listing. Quantities, reused hardware and condition-dependent replacements may need checking in the manual. A listed part is not an instruction to replace it.
Setup specifications
- Shocks
- Coilover threaded, aluminum body, 3 mm shaft, front and rearStock
- Shock bore
- 7 mm, front and rearSingle report
- Shock length
- 90 mm listed length, front and rearStock
- Spring, front
- 0.45 rate, no stripeStock
- Spring, rear
- 0.54 rate, green stripeStock
- Front lower shock bolt
- 3 × 27mm buttonhead (2616). Stock 82056-4; lower shock/link axle screw, not adjacent link or upper shock support hardwareStock
- Rear lower shock bolt
- 3 × 27mm buttonhead (2616). Stock 82056-4; lower shock/link axle screw, not adjacent link or upper shock support hardwareStock
- Front upper shock bolt
- 3 × 23 mm button-head. Original 82056-4 upper shock eye; both sides. Not the nearby suspension-link fastener.Stock
- Rear upper shock bolt
- 3 × 23 mm button-head. Original 82056-4 upper shock eye; both sides. Not the nearby suspension-link fastener.Stock
- Shock oil, front
- 30 wtStockConvert fluid grade
- Shock oil, rear
- 30 wtStockConvert fluid grade
Keep the axle positions and original units shown. Values describe the cited configuration. Replacement-derived and community figures keep their stated basis.