{"product_id":"th400-turbo-400-hd-input-shaft-1965-1990","title":"TH400 Turbo 400 HD Input Shaft 1965-1990 CTS-TH400-SHF-1036 Sonnax","description":"\u003ch3\u003eSonnax TH400 Turbo 400 HD Input Shaft 4340\u003c\/h3\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eProfessional-grade 4340 chromoly HD input shaft for the GM TH400 Turbo 400 3L80 heavy-duty automatic transmission. Manufactured by Sonnax to exacting OEM specifications, this hardened input shaft is a direct replacement for worn or damaged original components.\u003c\/p\u003e\u003cp\u003eThe TH400 is the workhorse of classic GM drivetrains, and quality hard parts are essential for reliable operation.\u003c\/p\u003e\u003cp\u003eCompatible with all TH400 transmissions from 1964 to 1990 in Chevrolet Corvette, Camaro SS, Chevelle SS, C10\/C20 trucks, GMC trucks, Pontiac GTO, Firebird, Buick GSX, and Oldsmobile 442. Precision-machined for perfect fitment and long service life under demanding conditions.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eAll parts ship from our warehouse with quality inspection. Same-day shipping on most orders. Professional installation recommended.\u003c\/em\u003e\u003c\/p\u003e","brand":"Sonnax","offers":[{"title":"TH400","offer_id":50728914387191,"sku":"CTS-TH400-SHF-1036","price":242.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6591\/1287\/files\/34555-03K_52ff9234-563d-4269-b923-4e06837707b8.webp?v=1777754175","url":"https:\/\/coretransmissionparts.com\/products\/th400-turbo-400-hd-input-shaft-1965-1990","provider":"CoreTransmissionParts.com","version":"1.0","type":"link"}