Description
Our Pro Race Series transmission is the finest built street/race automatic transmission in the industry. These transmissions are tough and built to handle whatever you dish out. We incorporate all the updates and modifications to compensate for the problems and issues they were born with from the factory. We believe you will not find a better performance transmission anywhere!
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Performabuilt Transmissions. Truck Transmission. Business Profile. Performabuilt Transmissions. 1123 Old Berwick Rd. Bloomsburg, PA (570) 578-5686. Contact Information. PerformaBuilt Transmissions, Bloomsburg, Pennsylvania. 6,834 likes 22 talking about this. Here at PerformaBuilt Transmissions, our goal is to engineer and build the toughest transmissions on the. PerformaBuilt Transmissions, Bloomsburg, Pennsylvania. 6,870 likes 213 talking about this. Here at PerformaBuilt Transmissions, our goal is to engineer and build the toughest transmissions on the. These transmissions have a PerformaBuilt performance shift kit installed, and will have very positive shifts, which become progressively more aggressive as throttle is increased. No accumulators are blocked causing unnecessary strain in normal driving, but it still delivers that kick-ass feel under throttle.
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Below are the details of our Pro Race (LEVEL-2) built transmission.
First, each core transmission is disassembled and carefully inspected. The case and hard parts are cleaned thoroughly and re-inspected for cracks, wear, or other damage before we begin. The case is specially prepared and a coating of and heavy duty, heat resistant, oil based enamel is baked on, creating a hard and durable glossy finish. The seals in the case are then replaced and assembly begins.
The rear planetary assembly and bearings are meticulously inspected, then assembled into the case along with heavy duty reverse friction and steel plates. At this time the center support and sprag (one way roller) are installed after being inspected for stress cracks and damage. In addition, dual bushings are installed in the rear sun gear to handle the extra weight of the beast sun shell.
Next, the sun gear is inspected and modified to improve lubrication to the rear planetary assembly. This allows oil to escape from between the bearing and the gear it rests against, feeding additional lube to the planetary gears. This is a huge improvement and virtually eliminates one of the most common points of failure for this type of transmission. In fact, contrary to common opinion, the rear planetary assembly in these transmissions is not, in any way, weak by design. Their failure is almost exclusively due to a lack of lubrication. When you see one of these with a damaged rear planetary, it will almost always be accompanied by the blue-black signs of excessive heat. Simply put, these planetary assemblies with good lube DO NOT EASILY FAIL; even in the most demanding environments.
We then replace the sun shell with a new heavy duty unit called (and deservedly so) THE BEAST, which far exceeds the factory component. THE BEAST is able to withstand the rigors of the street, the strip, or the mud; whichever is your pleasure. No matter how hard you beat on it, THIS SHELL DOES NOT BREAK!
Next, we re-inspect the front planetary assembles – measuring clearances and making sure everything is within our own rigid specifications before installing it and inserting the output shaft.
The front sun gear, like the rear sun gear, is then modified for improved lubrication and installed. Then the output shaft is set for the proper end-play.
We re-inspect the input drum before installing new rubber seals and a neoprene lubrication seal. Next, we install new heavy duty overrun friction plates, A BORG WARNER DUAL CAGE INPUT SPRAG ASSEMBLY, and carbon composite forward friction plates. These forward friction plates have a superior holding capability as well as improved ability to withstand extreme heat; when compared with the OEM friction plates. Since these friction plates must hold the power of your vehicle in every forward gear, they have to be tough enough for the job.
Finally, we replace the 3-4 clutch set with 8 high-energy Borg Warner friction plates and Raybestos steel plates to avoid heat burn and coning.
Next, we install the reverse input drum for the new Max Duty Performance Wide Band. This band has approximately 20 percent more surface area for holding in both second and fourth gears. This stronger 2-4 band will hold the torque during that tire chirping shift into second at full throttle in your performance machine.
We also install the *SONNAX BILLET * for maximum “apply pressure” in second gear and the Sonnax twin piston super servo for overdrive, providing an additional 30 percent holding ability in 4th gear.
Now we move on to the pump. It is inspected and modified to provide maximum lube to the planetary sets. We install a large boost valve suitable for the application. The vanes in the pump are carefully inspected for wear and replaced as needed. Steel pump rings are installed. The pump bushing is replaced with a Teflon bushing, and notches are made in pump surface to prevent its movement in even the most demanding high RPM or towing situations. This effectively eliminates front seal blow out. In addition, the front seal is installed with a special adhesive and seal retainer to eliminate any possibility of ever having a problem. The pump is the heart and soul of any automatic transmission, and we make sure it’s a healthy one. Max line pressure to between 210 and 225 PSI; which is dyno verified, of course.
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The last section is the valve body. For this we use all we have learned over the years. Although most shift kits have certain distinct advantages, what we have learned is no one kit has all the best modifications… some parts we liked, others we didn’t. We took the best parts of each, and utilizing our own experience, created a set of modifications that is superior to all the others. We do not block accumulators, since the reason they exist is to prevent excessive shock to the transmission and drive train. With our transmissions, you will always have a solid, firm shift that will be linearly progressive. That means at light throttle you will feel a nice bump, letting you know the car or truck has shifted. As throttle is increased, the shifts will become more pronounced to the point of tire chirping in high performance vehicles or a firm shift at full throttle in a towing/hauling situation. It will not cause whiplash just cruising with your significant other or your grandmother around town, but will turn heads when laying it on the line.
We also eliminate the partial lockup function GM mistakenly engineered into the 4L60E transmission, thus eliminating converter shudder, premature converter clutch failure, and the well known code 1870, which causes high “line pressure”, no fourth gear, and teeth cracking shifts at low throttle. Lockup is either OFF or ON, not slipping off and on as it did with the factory PWM working. This does not affect performance, but it does have the added advantage of increasing low speed fuel efficiency, which at today’s fuel prices is like getting a bonus. In addition, this modification, along with others, allows us to use later valve bodies on older units to improve performance and increase interchangeability and reliability.
So there you have it. Our LEVEL 2 TRANSMISSION, designed to meet your needs today, tomorrow, and for many years to come!
PerformaBuilt is staffed by the best people in the industry; experienced, dedicated, hard-working Americans. Over the years, we’ve built thousands of high-performance transmissions and shipped them to satisfied customers all over the world. We take a great deal of pride in our reputation and in the quality of our work.
Our high performance PerformaBuilt transmissions were developed based on years of “in the trenches” research and development. We are “car guys”! We want to build transmissions that can stand up to whatever abuse you can throw at them. By applying our combined knowledge, and employing some American ingenuity, we are able to eliminate the problems that some transmissions routinely face, and correct the flaws that exist in OEM versions. We don’t just rebuild transmissions or install a simple high performance kit. Instead, we methodically re-engineer our transmissions to eliminate all weaknesses.
All units are subjected to numerous tests during the various stages of the rebuild process including a half hour each on our custom dyno. We run it through all the shifts up and down… from a cold start, and repeat the entire test procedure after the unit is at normal operating temperature. Then we remove the unit from the dyno and test each of the solenoids and switches to verify they are still in range when hot.
Our mission is to be the world’s most progressive transmission company. Our focus has always been CONTINUING IMPROVEMENT through research and development. We incorporate new technology and upgrades into our transmissions on an ongoing basis. We’re confident that you will not find a better, stronger transmission on the market today. We believe that we engineer and build the best transmissions in the world and we would be honored if you would allow us to be your transmission supplier.