At Hughes Performance we rebuild and repair transmissions and torque converters.
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New Performance Parts & Tech Talk
Hughes Performance has your high horsepower 4L80E solution! Our new Extreme Duty 4L80E/4L85E input shaft is rated for use with 1,500+ flywheel horsepower, and comes standard in every one of our Heavy Duty (HD) series and Extreme Duty (XD) series 4L80E transmissions. This superior new input shaft is available under part number HP2514. This premium shaft is manufactured from a billet of 300M steel. As part of the manufacturing process each HP2514 input shaft is subjected to a multi-stage heat treatment process and then finished with a unique nitriding treatment which gives the shaft its distinctive black appearance.
We are excited to announce the release of our new shallow cast aluminum pan for 4L80E transmissions! This pan is available under part number HP2582. The kit includes the oil pan, drain plug, bolts, washers, filter, and gasket. The HP2582 pan features stock GM fluid capacity, and is ideally suited for customers that desire the superior sealing characteristics of our cast aluminum pan but do not have the extra ground clearance for our deep HP2580 pan. This pan is a great choice for lowered muscle cars and hot rods utilizing a 4L80E transmission. The new HP2582 pan features an overall height of 3-1/16″. This dimension is only 1/4″ taller than a stock GM stamped steel pan, and is a full 1-3/8″ shorter than our deep HP2580 pan.
We have added another great dipstick and tube to our product line. This new model is our NHRA-approved “shorty” locking dipstick and filler tube for the TH400 transmission. With the ever-increasing popularity of 2-speed and 3-speed TH400 transmissions being used in chassis applications such as Pro Mod, Outlaw 10.5, Extreme Drag Radial, etc., this dipstick and tube is the perfect fit for these types of race cars where dipstick access is severely limited. This new product is available under part number HP2235S. We have plenty in stock and ready to ship!
Hughes Performance is excited to announce the addition of two new locking dipstick and filler tube assemblies to our product line!
Hughes Performance now has available a special 3-pack of Powerglide front pump gaskets. This gasket kit includes (1) .015″ gasket, (1) .030″ gasket, and (1) .060″ gasket. This gasket kit allows the transmission builder to easily and quickly adjust end-play within the transmission. This gasket kit is especially helpful in those situations where the end-play is too tight and the builder does not have the necessary equipment to machine the pump stator to increase clearance within the transmission.
The GM25HDX torque converter is our latest addition to our heavy duty torque converter product line. This new model is based on the proven and popular GM25 torque converter, but offers several key upgrades to enhance strength and durability in extreme high output applications.
New TH400 reverse pattern manual valve body with engine braking now available! Hughes Performance is now offering a full manual valve body with reverse shift pattern and full engine braking in all forward gears under part number HP2211EBR for the TH400 transmission. The reverse shift pattern in this valve body is P-R-N-1-2-3. This valve body is an excellent choice for off-road applications that can benefit from being able to rapidly cycle from low gear to reverse and back with the reverse shift pattern all while still retaining engine braking in all forward ranges for maximum braking ability while decelerating downhill or on an off-road race course. This valve body is also ideally suited for anybody with a street car that would prefer a reverse shift pattern but would also like to be able to downshift the transmission under power and/or load. This new valve body is a direct replacement for virtually any existing automatic or forward pattern manual valve body for the TH400, and easily installs through the transmission pan with no further transmission disassembly required. Installation of this valve body will also provide you with an ideal opportunity to upgrade to our deep cast aluminum pan available under part number HP2280 as well as install our recommended Lucas Sure Shift (part number HP501) or Lucas Extreme ATF (part number HP503) transmission fluids. The HP2211EBR valve body is in stock and ready to ship immediately. *Please note that if you are replacing an existing reverse pattern manual valve body then you will need to partially disassemble the transmission so that the intermediate band can be re-installed into the transmission. We recommend our Kevlar intermediate band available under part number HP2251H. This band is also included in our premium master overhaul kits for the TH400 transmission. Read more… NEW! Constant Pressure Valve Body! Hughes Performance is excited to announce that we are now including an upgraded constant pressure valve body in all of our Street/Strip 700R-4 and 200-4R transmissions at no additional charge! The constant pressure valve body is a superior design that offers clean, crisp shifts along with significantly more consistent shift timing. The most exciting part about the constant pressure valve body is that the T.V. system no longer has any affect on line pressure. This means that an incorrectly adjusted T.V. cable will no longer contribute to a premature transmission failure. With the constant pressure valve body installed the T.V. cable is only used to set shift timing and provide kickdown function. You can now fine tune your T.V. cable adjustment to provide the shift timing you desire for your driving style without fear of burning up your transmission.