{"product_id":"allison-1000-2000-p1-planet-carrier-2nd-design-w-p2-ring-gear-116580aa-duramax","title":"Allison 1000 2000 P1 Planet Carrier 2nd Design w\/ P2 Ring Gear 116580AA Duramax","description":"\u003cp\u003e\u003cstrong\u003eAllison 1000 2000 P1 Planet Carrier 2nd Design w\/ P2 Ring Gear 116580AA Duramax\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsed OEM unit pulled from an inspected donor transmission, cleaned and visually inspected before listing. Photos show a representative unit of this exact part and variant — see the fitment and casting notes below to confirm your match.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e G-AL1000-PL-U-01\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Used OEM Allison P1 planet carrier, 2nd design (recessed bearing face where the #244 bearing rides), with P2 ring gear as noted in Buffalo's product listing. No bearings or thrust washers included.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 30-day return-or-replace after delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping:\u003c\/strong\u003e UPS Ground from our Tennessee warehouse, 2 business day handling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eOEM \/ interchange references\u003c\/strong\u003e (verify against your casting\/tag):\u003c\/p\u003e\u003cul\u003e\u003cli\u003e116580AA\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFits\u003c\/strong\u003e (engine\/year matters — read carefully): P1 (input) planet for the Allison 1000\/2000\/2400 family (LCT1000), 2000-up per WIT - GM Silverado\/Sierra 2500HD-3500HD 6.6L Duramax 2001-2019, 8.1L gas trucks, and Allison-equipped GM medium-duty. SECOND DESIGN ONLY: recessed where the P1-to-P2 bearing rides, two washer notches, and it carries the P2 ring gear. 1st-design units use the flat-face carrier (Buffalo 116580A) - match your carrier style before buying.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e 1st vs 2nd design are different parts: 1st = FLAT where the bearing rides (no washer notches), 2nd = RECESSED with 2 washer notches + P2 ring gear. Transtar also lists a separate 06-up Hi-Helix P1 gear cut - buyers with Gen4 6-speeds must compare gear helix\/photos. Description tells buyer to verify design against their teardown; no OEM number claimed.\u003c\/p\u003e\n\u003cp\u003eBefore you order: confirm your transmission code and casting\/part numbers. Not sure? Message us\nthrough eBay with your VIN or transmission tag and we will confirm fitment the same business day.\nRebuilder shops — ask about volume pricing. We stock transmission hard parts by family and can hold\ninventory for scheduled builds.\u003c\/p\u003e","brand":"Allison","offers":[{"title":"Default Title","offer_id":54608519823659,"sku":"G-AL1000-PL-U-01","price":167.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0980\/0309\/1755\/files\/57_1300035e-85ae-4dc2-bd4d-87e8a9a65ab6.jpg?v=1785254419","url":"https:\/\/huskparts.com\/products\/allison-1000-2000-p1-planet-carrier-2nd-design-w-p2-ring-gear-116580aa-duramax","provider":"Husk Parts ","version":"1.0","type":"link"}