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Kit setup
Kit shock setup. Part numbers link to AMain.
What shock oil does the Traxxas TRX-4 come with?
Out of the box the TRX-4 runs 30 wt front, 30 wt rear (Traxxas oil). That is the kit setup; you will need to adjust it for your track conditions. The RC Setup App can help dial it in.
What springs does the Traxxas TRX-4 come with?
The kit springs are 0.47 (#8155) front, 0.47 (#8155) rear. Stiffer springs suit high grip and big jumps; softer springs add grip on slick or bumpy tracks.
Setup Help
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Manual
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Front Assembly Exploded View
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Modular Assembly Exploded View
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Rear Assembly Exploded View
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Transmission Exploded View
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Parts List
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Searchable parts list
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Oil Comparison Chart
Reference chart — Crawler
Free to start · iOS & Android
Setup App & Race Log
Your Traxxas TRX-4 is in the RC Setup App
Save every setup change you make to your Traxxas TRX-4, get AI tuning answers for that exact car, and log your races — at the track or back in the pits.
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