{"product_id":"4l80e-4l85e-performance-reprogramming-kit-transgo-4l80e-hd2-copy","title":"4L80E 4L85E Fully-Manual Performance Reprogramming Kit™ - TransGo 4L80E-HD3","description":"\u003cdiv style=\"text-align: center; font-family: Arial;\"\u003e\n\u003ch2\u003e4L80E 4L85E Performance Reprogramming Kit\u003c\/h2\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: large;\"\u003e\u003cstrong\u003eReprogramming Kit™ with manual Shift Control \u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: large;\"\u003e\u003cstrong\u003e4L80E-HD3\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003eFits all 4L80E, 4L85E 1991-on\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cstrong\u003eFeatures: Total Driver Control!\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eNo Automatic Shifts\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003eThe trans will be in the gear you select and changes\u003cbr\u003eto any gear you choose when you move the selector.\u003cbr\u003eDRIVER is in full COMMAND!\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"toggle-content\"\u003e\n\u003cp style=\"text-align: left;\"\u003eThis 4L80E-3 Reprogramming Kit fits 1991 to 2013 General Motors vehicles equipped with the 4L80E and 4L85E automatic transmission with gas engines only.  Common complaints on this transmission are no upshifts, soft 2-3 shift, burnt direct frictions, broken hard parts as well as gear ratio and solenoid performance codes.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eThe boost valve assembly is notorious for wear causing both low pressure as well as runaway boost pressure. With the low boost pressure problem, the resulting complaints are a soft 2-3 shift, direct clutch failure as well as the gear ratio and solenoid performance codes. On the other hand, the runaway boost pressure problem can result in a costly broken case, direct drum and piston failure.\u003c\/p\u003e\n\u003ch4 style=\"text-align: left;\"\u003e\u003cstrong\u003eFeatures and benefits:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"text-align: left;\"\u003eThis TransGo Reprogramming Kit provides full manual control for upshifting and downshifting 1st through 4th gear, there are no automatic shift functions retained. This kit delivers short firm shifts for performance as well as greater overall durability.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003eIt is designed for the off-road driver only and for vehicles that do not have any TCM controls.\u003c\/strong\u003e It’s all about providing the required gears when there are no computer controls. Similarly, the internal vacuum modulator setup provides an aggressive line pressure curve and regulation without the need for a TCM.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eThe included valve body, pump and internal components are calibrated to work in concert with an aggressive line pressure curve that will greatly improve the overall durability and shift feel of the transmission. Also, the laminated triple separator plate provides dual feed for the 3\u003csup\u003erd\u003c\/sup\u003e gear clutch without having to dismantle the transmission. Dual feeding the 3\u003csup\u003erd\u003c\/sup\u003e gear clutch triples the torque capacity of the 3\u003csup\u003erd\u003c\/sup\u003e gear clutch which is the Achilles heel of this transmission. In addition, the included highly improved wide land design boost valve and bushing resists wear so that pressure regulation functions consistently for the long haul. Lastly, the EPC boost pressure relief valve system provided helps protect against accidental runaway boost pressure to stop the case and direct drum failure.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003eThere are no provisions included in this kit for the torque converter clutch operation\u003c\/strong\u003e, therefore, if you are going to run a TCC you will need to wire it up to a toggle switch for which parts and instructions are not furnished. On the other hand, if you are going to install a converter with NO clutch, then the installation of \u003cstrong\u003e48-CCV\u003c\/strong\u003e is advised for maximum coupling and cooling.\u003c\/p\u003e\n\u003ch4 style=\"text-align: left;\"\u003e\u003cstrong\u003eCorrects\/Prevents\/Reduces:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003eHigh pressure parts breakage\u003c\/li\u003e\n\u003cli\u003eSoft 2-3 shift\u003c\/li\u003e\n\u003cli\u003eBurnt direct clutch\u003c\/li\u003e\n\u003cli\u003eLow pressure due to solenoid filter breakup\u003c\/li\u003e\n\u003cli\u003eProvides full manual control for upshifting and downshifting 1\u003csup\u003est\u003c\/sup\u003e through 4\u003csup\u003eth\u003c\/sup\u003e gear\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 style=\"text-align: left;\"\u003e\u003cstrong\u003eIncludes:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003eAccumulator valve spring, end plug and O-ring\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eRelief valve system plate, valve, spring, e-clip and nuts\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e3-4 Shift valve spring\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e2-3 Shift valve spring\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e1-2 shift valve end plug and retainer\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eHeavy duty intermediate case snap ring\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eActuator filter tapered plug, O-ring, spring and end plug\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e(4) Drill bits\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eLaminated valve body triple separator plate\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eValve body separator plate and accumulator body gaskets\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e3\u003csup\u003erd\u003c\/sup\u003e accumulator spring\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eUSA-made hardened boost valve and bushing\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003ePressure regulator valve spacer, washer, springs and snap ring\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eNew stronger 4\u003csup\u003eth\u003c\/sup\u003e feed bolt and washer\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e1-2 accumulator spring\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e(16) Direct clutch return springs\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eBrass fitting\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eVacuum modulator, pin, valve and bushing\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eHold down bracket\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eElbow vacuum hose and spring\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e(4) Short zip ties\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e(5) Long zip ties\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eVacuum tee\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"TransGo","offers":[{"title":"Default Title","offer_id":47967085625566,"sku":"T34173E","price":319.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/5464\/5470\/files\/T34173E_1.jpg?v=1773156323","url":"https:\/\/transmissioncenter.net\/products\/4l80e-4l85e-performance-reprogramming-kit-transgo-4l80e-hd2-copy","provider":"Transmission Center","version":"1.0","type":"link"}