{"product_id":"b-m-shift-improver-kit-65-87-th400-20260","title":"B\u0026M Shift Improver Kit 65-87 Th400 - 20260","description":"\u003cp\u003eThe B\u0026amp;M Shift Improver kit for 1965-1987 GM TH400, TH375 and TH475 automatic transmissions provides two calibration options. Heavy Duty gives firm positive shifts without sacrificing driver comfort, while Street\/Strip provides firmer, quicker shifts for performance applications. The kit is intended for street, towing, off-road and street\/strip use.\u003c\/p\u003e","brand":"B\u0026M","offers":[{"title":"Default Title","offer_id":49544661827822,"sku":"BMM-20260","price":77.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/9110\/6798\/files\/53bd824ea0c70dc7a1ee640c8364e35ddad9dff6_662c8d6e-754c-4ba1-8352-44ede48476ea.jpg?v=1788734786","url":"https:\/\/elmosspeedshop.com\/products\/b-m-shift-improver-kit-65-87-th400-20260","provider":"Elmo's Speed Shop","version":"1.0","type":"link"}