Spacer bushing, Slips over the shifting rod to correctly space the cruciform from the selector box.

Some of the older Vespas use two separate parts, spacer bushing and gear rod, to position of the cruciform. To ensure the function of the gearbox the spacer bushing must to be chosen to fit the model of engine. If the bushing is not of the correct size the cruciform will be in the wrong position relative to the gear cogs and the mainshaft. That could potentially cause the gears to jumps.

SIP-TIP: Make sure to us the correct cruciform for the engine.