{"product_id":"4l80e-4l85e-valve-body-reprogramming-kit-transgo-4l80e-hd2","title":"4L80E 4L85E Performance Reprogramming Kit - TransGo 4L80E-HD2","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™ 4L80E-HD2\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\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"toggle-content\"\u003e\n\u003cp style=\"text-align: left;\"\u003eThis 4L80E Performance Reprogramming Kit™ fits 1991 to 2013 General Motors vehicles equipped with 4L80E and 4L85E automatic transmissions.  Common complaints on these transmissions are no upshifts, soft 2-3 shifts, 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;\"\u003eThe TransGo 4L80E Performance Reprogramming Kit includes valve body, pump and internal components that are calibrated to work in concert with an elevated 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\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\u003eSlow 3-2 downshift\u003c\/li\u003e\n\u003cli\u003eNo upshifts\u003c\/li\u003e\n\u003cli\u003eHarsh 1-2 shift\u003c\/li\u003e\n\u003cli\u003eLow pressure due to solenoid filter breakup\u003c\/li\u003e\n\u003cli\u003eCodes 39, 68, 85, 86, 87, P0731, P0732, P0733, P0734, P0751, P0756, P0894 and P1870\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;\"\u003eHeavy duty intermediate case snap ring\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e(2) Accumulator valve springs, end plug and O-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;\"\u003eRelief valve system plate, valve, spring, e-clip and nuts\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eLaminated triple separator plate\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eValve body and accumulator body gaskets\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e(2) Drill bits\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\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"TransGo","offers":[{"title":"Default Title","offer_id":47967073206494,"sku":"T34169E","price":171.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/5464\/5470\/files\/T34169E_1.jpg?v=1773155778","url":"https:\/\/transmissioncenter.net\/products\/4l80e-4l85e-valve-body-reprogramming-kit-transgo-4l80e-hd2","provider":"Transmission Center","version":"1.0","type":"link"}