This Part Fits the following kits / parts:

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#88073 - DIFFERENTIAL LOCKER (SPOOL DIFF HUB/2pcs)

For 87633 WHEELY KING ROCK CRAWLER CONVERSION SET

Genuine HPI quality spare part for #87633 Wheely King Rock Crawler Conversion Set, allowing easy maintenance and repairs. Anyone looking to customize their Wheely King to solid axles should have a set of these! You get a pair of diff lockers that provide you with a solid axle and add extra weight where it's need: down low.

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