{"product_id":"arrma-ara-3067-assembled-oil-filled-diff-30t","title":"ARRMA ARA-3067 Assembled Oil Filled Diff 30T","description":"\u003cp\u003eThis ARRMA assembled oil-filled differential comes built with a 30-tooth 0.8 MOD ring gear and pre-filled with 3000cSt silicone diff fluid — a complete drop-in diff replacement for the GROM platform. Diff building is fiddly work at any scale; at GROM scale it's genuinely tricky, and this unit skips all of it.\u003c\/p\u003e\u003cp\u003eThe differential arrives factory-assembled, shimmed, sealed, and filled, so gear mesh and fluid volume are exactly to spec out of the package. The 3000cSt fill delivers the stock balance of on-power drive and off-power rotation the GROM platform is tuned around.\u003c\/p\u003e\u003cp\u003eA worn diff shows up as clicking under load or a truck that unloads its inside wheel out of corners — and at this price, swapping the complete assembled unit is faster and more reliable than rebuilding.\u003c\/p\u003e\u003cp\u003eFitment is the ARRMA GROM platform including the Quake GROM — confirm against your model's exploded parts diagram. The package includes one assembled, oil-filled 30T differential.\u003c\/p\u003e","brand":"PowerHobby","offers":[{"title":"Default Title","offer_id":67651250880600,"sku":"ARA-3067","price":19.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0567\/0554\/8376\/files\/ARA-3067_A0_XURDTQPE.jpg?v=1791387903","url":"https:\/\/beavertonmilestonehobby.com\/products\/arrma-ara-3067-assembled-oil-filled-diff-30t","provider":"Beaverton Milestone Hobby","version":"1.0","type":"link"}