If you purchase a torque converter from us you will automatically get the 2 Year Warranty Upgrade. This option provides you a 2 Year Warranty on your PerformaBuilt transmission for an additional $200. This transmission comes with a 1 Year Warranty. The PerformaBuilt Performance Hydramatic 400 Racing Transmission will handle whatever you can dish out and will perform to and beyond your expectations. A new adjustable modulator is also installed at this time and the transmission is dyno’d for proper operations and line pressure.
#Th400 transmission install#
We then install the full manual or auto/stick setup, per customer preference, and install a performance filter. We disassemble the valve body and check all valves for proper motion. It is then assembled and installed in the case with the boost valve. The pump is carefully inspected, checked for straightness, and a new bushing installed. Special modifications are made to nearly double holding power in this drum. The forward clutch drum is assembled, heavy duty friction plates installed, and the front pump assembly tested. The assembly is installed into the case and the drum is static air tested for proper operation. Raybestos Performance/Heavy Duty friction and steel plates are installed with the clearance set. The direct clutch drum is replaced with the 4L80E direct drum and 34 element sprag and race assembly sealed and installed. Next, the Raybestos Performance/Heavy Duty friction plates are installed, followed by the new intermediate overrun braking clutches. The support bolt is torqued to spec, and the rear end-play tested and adjusted as necessary. The center support is then inspected, resealed and installed into the case. Then the heavy duty low reverse band is installed and band clearance checked and set. We then inspect the rear planetaries carefully, install the heavy duty roller clutch and cage, and install the assembly into the case.
This provides a hard durable finish that is oil and stain resistant for you show guys. It is then checked carefully for any cracks or distortion and, while cooling, is finished with a high gloss aluminum/gray sealant and allowed to finish cooling. Then the case is heated to 250 degrees to remove all water residue.
We start by cleaning the case in our hot cleaner. Its features include the following components and modifications (nothing but the best): This model is an auto/stick trim for the dual purpose vehicle. The PerformaBuilt Hydramatic 400 Racing Transmission is a mega-performance transmission capable of 1000 RWHP. PERFORMANCE TH400 RACING TRANSMISSION (Auto) Shipped only to Commercial/Business Locations
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