If a new Selector Box is not installed during an engine overhaul, these Small parts should definitely be replaced. A worn Pin makes shifting difficult, a worn Selector Arm can cause the gears to jump. The following often applies here: small cause, big effect.

Over the years, the Selector Arm wears out, causing gear selection to become increasingly imprecise. DRT therefore offers a version of the Selector Arm with reinforcement that ensures more precise guidance and reliably holds the Cruciform in position.