These are generally caused by a worn reverse boost valve sleeve or wear at the pump body. Transbrake valve body full manual style cast aluminum chevy 4l80e reverse shift pattern kit tci auto. Jan 22, 2012 in 1995 there was a change in both the surface of the drum and the lining of the band in the 4l80e. Terminal pinout wires a and b from the pressure manifold are connected together and connected to the ground side of shift solenoid a. The baddest of the bad, this is a nonelectronic 4l80e transmission. Get maximum performance and quicker ets with these tci full manual valve bodies. Everything you need to know about rebuilding a 4l80e. Full manual shifts the transmission will be in the gear you select and changes to any gear you choose when you move the selector, no computer or wiring needed, red eagle clutches, carbon fiber band, redeagle powerpacks for the forward, intermediate and direct clutches, kolene steels, red eagle clutches for the overdrive and. Auto shift valve body with pro tree fluid release transbrake feature. Mar 04, 2021 there are 4l80e valve body diagram no less than the following varieties of body diagram. In addition, there also was a change in the boost valve located in the front pump for reverse line pressure boost.
Hughes 4l80e full race transmission, manual shift with. It alsoretains torque converter clutch engagement in overdrive and still allows lockup in lower enginerpm. Vehicles with gm 2004r and 4l60 transmissions often have problems with poor reverse boost or upshifts in manual low. Pat kelly the line pressure in a 4l80 e manual conversion is modulated the same as every th400 ever made. Designed from clean sheet of paper pro tree solenoid and design works well on the street and at the track the only 4l80e pro transbrake available direct replacement for 1991 to 2010 4l80e full manual reverse pattern no shift computer required no moving parts no electrical parts for shifting. I am as serious as a heart attack with this purchase. Redesigned oil circuitry provides super positive gear changes, increased torque capacity and instant transmission brake release for the ultimate in efficiency, performance, and durability. We offer several options so you can have one custom built for you particular application. For gm powerglide transmissions push to upshift, there are multiple cable options to accommodate. In 1995 there was a change in both the surface of the drum and the lining of the band in the 4l80e. Aug 18, 2017 however, the 4l80e can be easily converted to a manually shifted valvebody, which eliminates the need for the computer and much of the electronics and wiring.
Junkyard builder rossler transmissions car craft magazine. I dont think thats a reverse valve body but i emailed them just to make sure. Stuck pressure control solenoid valve located in solenoid. Gm 4l80e transbrake valve body kit, 97up tci automotive. Transbrake can be activated in lo range and be manually shifted, or can be activated in d3 range and be fully automatic.
Some years ago i developed a method of converting a 4l80e to full manual control in the. Designed from clean sheet of paper works well on the street and at the track direct replacement for 1991 to 2010 4l80e full manual reverse pattern no shift computer required no moving parts no electrical parts for shifting retains lockup function optional engine braking backs. Coan racing coa32011 manual valve body kit wengine. When there is no vacuum you get high line presuure wot yes, you have to shift its a manual valve body. The differences in the bands are very clear figure 4. Transbrake valve body full manual style cast aluminum chevy. Automatic transmission 4l80e manual valve body questions is anybody running a reverse manual valve body setup in their 4l80e with compression braking. Excessive valve clearance in pump valve bores due to use.
There are other methods to make a transbrake, and i know of one th400 setup that is a normal manual auto vb with brake. Full manual shifts the transmission will be in the gear you select and changes to any gear you choose when you move the selector, no computer or wiring needed, red eagle clutches, carbon fiber band, redeagle powerpacks for the forward. Spacer plate has a notch in the corner and no lube feed hole. It alsoretains torque converter clutch engagement in overdrive and still allows. Thatll close the reverse boost circuit, eliminating dangerously high line pressure in reverse. Sonnax diagnosing the elusive no reverse with the 4l80e.
Welcome to curts corner, brought to you by monster transmission. Valve body and separator plate upgrade drill out second, third, and fourth gear feed holes to the recommended size for the desired shift firmness. Tci full manual valve bodies free shipping on orders over. Transbrake valve body, full manual style, cast aluminum, chevy, 4l80e, reverse shift pattern, kit. Our 5400pound, 400hp 4x4 has chewed through no less than four 4l60e fourspeed automatic transmissions in less than a decade. In reverse, pressure goes to rev land of the pressure boost valve and flows. Mind you, this transmission can also be converted to be a full manual gearbox as well. Mar 04, 2019 252abchdx 4l80e full manual valve body wiring instructions 1. Lighting rods make it easy to shift a manual valve body on the street. The leader in remanufactured valve bodies all valve bodies are run through a series of shift cycles at operating temperature, then precisely calibrated using stateoftheart valve body test equipment to verify. Once installed, the tci gm 4l80 e transbrake valve body modifies your transmission into afull manual shift, reverse pattern unit with an impressive pro tree transbrake feature. Our 4l80e and 4l85e transmissions are one of the strongest in the world. Plug the reverse boost passage in stator support figure 5. Installing a 2nd design plate notched corner on an 1st design vbunit dumps lube oil to the pan.
Automatic transmission valve bodies transbrake included. I like the control factor, its like having a stick shift with no clutch. Sloppy mechanics wiki 4l80e information, technical. With that setup you wouldnt have to buy the controller and etc. It looks like there are a few manual valvebodys available, but none seem to have a reverse shifter pattern. The transmission is also slightly larger than a th400 as the overall length is 32 inches. Cross channel air leak body to cover or body to case gasket at pump. Testing the pressure switch, a and b solenoid, torque converter clutch solenoid. Buy valve body parts for gms 4l80e 4l85e transmission. Designed from clean sheet of paper works well on the street and at the. Theyre engineered to allow full manual control of the valve body, for quicker shift timing and higher line pressures. Troubleshooting the 4l80e automatic transmission page 9 transmission range tr pressure switch assembly.
No electronics needed, but you can keep the lock up converter if you. Whether it is offroad racing, kings of the hammer, drag racing or just a custom street rod. Ea 4l80e billet aluminum reverse manual valve body features. The only point i was making is that this transmission workson the street or strip. Minor ecm tweak permits transmission brake activation in d2 range for second gear start capabilities. Automatic transmission valve bodies 4l80e transmission type. One of the biggest clues to identifying the 4l80e are the electronics that clips onto the drivers side of the transmission. Physical and biological effects on the human body body talk manual airfoil rigid body cfx manual hyundai 04 tiburon gt.
Once installed, the tci gm 4l80e transbrake valve body modifies your transmission into afull manual shift, reverse pattern unit with an impressive pro tree. Hughes 4l80e full race transmission, manual shift with trans. Feb 03, 2014 our 4l80e was a junkyard refugee, so it doesnt quite have the ultimate shift firmness that a new trans would offer, so the partthrottle shifts are most definitely firm but not necksnapping. Extreme automatics 4l80e billet aluminum reverse manual valve body features. Sep 11, 2007 i run a turbo 400 with a reverse manual valve body on the street and love it. Designed from clean sheet of paper pro tree solenoid and design. Upgraded valve body billet aluminum full manual transbrake valve body upgrade now available, reverse shift pattern prn1234, fastest setting and fastest releasing transbrake on the market, will cut. This cylinder is double acting, and allows for the use of any transmission side plate for any standard or reverse valve body for 2, 3 or 4 speed transmissions.
Common complaints on this transmission soft 23, no upshifts, burnt direct clutch, broken hard parts due to high pressure, low pressure due to solenoid filter breakup as well as gear ratio and. New 700r4 wont shift into 3rd at wot hot rod forum. This will convert your stock valve body to a full manual shift, normal pattern. Driving a reverse pattern, manual valve body th400 on the. Our valve body hydraulics have proven themselves repeatedly and our transbrakes have set the standard for release time. Early bands had a grooved lining and later bands were smooth lined. Anyone know if a manual preferably reverse valve body is available for gm 4l80e.
Just need a reverse manual valvebody kit for a 4l80e. The leader in remanufactured valve bodies all valve bodies are run through a series of shift cycles at operating temperature, then precisely calibrated using stateoftheart valve body test equipment to verify proper operation of the pressurecontrol circuits. Everything you need to know about rebuilding a 4l80e transmission. Cross channel leaks or cross valve land leaks at valve body. Easily convert the 4l80e to full manual control when performing this conversion, be sure to include these modifications. If you already have a reverse valve body then you need this shifter. Just need a reverse manual valvebody kit for a 4l80e pirate 4x4. Locate the 2wire harness on the driver side of the transmission case towards the rear of the transmission. Sloppy mechanics wiki 4l80e information, technical sheets. The transmission is also slightly larger than a th400 as the overall length is. Forward pattern full manual valve body with transbrake gives the driver complete control of gear range selection. Transgo gm 4l80e, 4l85e shift kit valve body repair kit. The pink wire provides power to the internal solenoids. Install oe lube tube, bracket and bolt, then finger tighten.
Tci full manual valve bodies free shipping on orders. We specialize in building the 4l80e for retrofit applications. This transgo 4l80e shift kit valve body repair kit fits 1991 to 20 general motors vehicles equipped with the 4l80e and 4l85e automatic transmission. Since you mentioned wishing you had gone with a manual, a 4l80 with a reverse manual valve body would be great, imo. You get less clutch slippage under high load, so that more power gets to the ground. Build a bombproof 4l80e manual valvebody transmission. We also offer full manual valve bodies or stand alone transmission controllers to run them. In this video curt goes over the difference between a forward valve body, and a reverse val. Install sonnax feed tube bracket notch over pipe and install oe bolt, then finger tighten. Shift kit valve body repair kit fits 199315 4l60e, 4l65e, 4l70e except hybrids. Forward vs reverse valve body monster transmission.
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