This RC-scale adjustable insert fits into the upright boss to permit stepped changes to the upright geometry on Serpent SRX8 Gen4 GP (SER600024) cars. It provides multiple small adjustment positions so you can tune handling without replacing the full upright casting.
Fitting is typical for spindle and upright maintenance: strip the hub area, press the insert into the boss, then rebuild and verify there is no interference. Maintain consistent fastener torque and correct bearing placement per the chassis guide to avoid binding or premature wear.
The insert is a tuning tool for altering roll center, scrub radius and steering response in measurable increments. Employ it within a structured testing plan to assess which settings improve lap times or driver confidence.
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