{"product_id":"b-m-transpak-gm-th350c-lockup-30235","title":"B\u0026M Transpak - GM TH350C (Lockup) 30235","description":"\u003cdiv class=\"full_description\"\u003eThe B\u0026amp;M¨ Transpak is the next step up from the B\u0026amp;M Shift Improver kit. It has all the features in the Shift Improver kit, plus it provides additional driver manual control (GM TH-400, 350, Ford C-6 and Chrysler Torqueflite only). B\u0026amp;M¨ Transpakª kit for 1980-1986 GM TH350C (Lockup) automatic transmissions. Most stock automatic transmissions won't downshift into low gear above 15 mph, and automatically upshift at a predetermined speed no matter what gear you're in. With the Transpak, you can downshift at any speed, and you can hold the transmission in first gear to any speed that you want! This is an asset when you've got a modified engine, and you want additional RPMs, or you're towing a trailer or driving heavy loads downhill. Stage 1. Heavy Duty is for street rods, normal passenger vehicles or other heavy duty use. Firmer shift feel but not harsh. Improves transmission performance and life dramatically without loss of comfort and offers normal automatic operation when in Drive. Stage 2 is for Hi-Performance street use. Essentially the same as Heavy Duty mode except shifts are much quicker. Retains full automatic features and standard shift points with selector in Drive. Notes: Does Not Fit 1968-1980 GM TH350 (non-Lock-up) transmissions.\u003c\/div\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul class=\"productpage_list\"\u003e\n\u003cli\u003eRecalibrate's GM TH350C Automatic Transmissions\u003c\/li\u003e\n\u003cli\u003eFull Manual Control on Most Transmissions\u003c\/li\u003e\n\u003cli\u003eImproves Transmission Life\u003c\/li\u003e\n\u003cli\u003eOptimum Performance\u003c\/li\u003e\n\u003cli\u003eFirmer shifts\u003c\/li\u003e\n\u003c\/ul\u003e\n\t\t\u003cdiv class=\"brandbox\"\u003e\n\t\t\t\u003cdiv class=\"brand-content\"\u003e\n\t\t\t\t\u003cp class=\"brand-title\"\u003eAbout B\u0026amp;M\u003c\/p\u003e\n\t\t\t\t\u003cdiv class=\"brand-main\"\u003e\n\t\t\t\t\t\u003cdiv class=\"brand-image-container\"\u003e\u003cimg class=\"brand-image\" width=\"387\" src=\"\/\/images.holley.com\/387x\/websitebrandimages_bandm_revise.jpg\"\u003e\u003c\/div\u003e\n\t\t\t\t\t\u003cp class=\"brand-text\"\u003eShop B\u0026amp;M's official site for automatic shifters, transmissions and components that exceed all your performance enthusiast needs at Holley.com!\u003c\/p\u003e\n\t\t\t\t\u003c\/div\u003e\n\t\t\t\u003c\/div\u003e\n\t\t\u003c\/div\u003e","brand":"B\u0026M","offers":[{"title":"Default Title","offer_id":62412580290931,"sku":"30235","price":180.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0897\/6289\/0099\/files\/bbddf91c9fdfa05f7449494f8663f2035ae58356.jpg?v=1767319718","url":"https:\/\/dspperformancemotorsports.com\/products\/b-m-transpak-gm-th350c-lockup-30235","provider":"DSP PERFORMANCE MOTORSPORTS","version":"1.0","type":"link"}