Additional cost applies for a quality inspected used drum. NOTE: IF you do not have a smooth type direct drum from an early TH400 or 4L80E, you will need one to use the 34 element sprag. Upon removal of pan, found a couple of hunks of clutch material and a small round piece of metal about about 0.30 in diameter and 0.10 in thickness. This is a transbrake unit with a 34 element sprag with spiral lock. It will have a complete kit with High Energy frictions throughout, new steels, torrington bearing upgrades for the output shaft to case, and a machined forward hub with torrington, new OEM rear band, low roller clutch, 34 element sprag, full set of bushings, thrust washers, HD intermediate snap ring, high flow filter, paper/rubber set, and case connector. I got a th350 with complaint of 'soft 2-3 shift, and slipping in 3rd'. It is an upgrade from the TH400 RACE FULL KIT. This kit includes all the rebuild components that we use to build our Stage 2 TH400 units. Includes everything in our Stage 4 Rebuild Kit with the addition of the 36 Element Sprag and Iron Super Drum. Includes everything in our Stage 3 Rebuild Kit with the addition of the Billet Intermediate Shaft and we replace the 4340 Billet Input Shaft with the 300M Billet Input Shaft in order to hold higher power. Includes everything in our Stage 2 Rebuild Kit with the addition of the 4340 Billet Input Shaft. TCI TH350 Trans-Brake, Reverse Shift Pattern Valve Body Kit. This is our base line kit and includes everything described above. It will include a low roller clutch upon request and the style filter and band you need for the year or your core. The transbrake acts in much the same manner as a manual clutch and prevents torque load transmission through the drivetrain before launch. HD intermediate snap ring, rear torrington bearing, machined forward hub with torrington bearing, 34 element sprag, and instructions/parts to make your own hydraulic improvements without buying a valve body kit. Our Transbrake Series allows you to achieve maximum torque converter stall for quicker and more consistent reaction times and 60-foot times. New internal harness, shift solenoids, and pressure manifold switch. Gasket Set for 321500 TH350 Reverse Shift Pattern Transbrake Valve Body. New rear band, front band, filter, full bushing kit, thrust washer kit, new pressure regulator spring for additional pressure. Gasket Set for 321000 TH350 Forward Shift Pattern Full Manual Valve Body with 2nd Gear Brraking. It includes a master kit with High Energy frictions, new steels, bonded pistons, and additional friction for the direct. 521.36 Buy It TCI AUTOMOTIVE 221301 2-Wire Transbrake Solenoid For GM TH350. TCI AUTOMOTIVE 321500 Transbrake Valve Body Kit For GM TH350. This kit includes all the rebuild components we use to build our STAGE 2 4L80E units. This TCI® TransBrake® Valve Body Kit has been designed to work with a Turbo 350 Non-lock Before you start installation read these instructions completely. If it is beyond your skill level, please have a professional technician build the transmission for you. We will provide instructions for our upgrade parts, but basic rebuilding questions will NOT be answered. We cannot rebuild your transmission over the phone or email. PLEASE understand that we are selling you the kit, not the rebuild. Our kits contain the same high quality parts that we use to rebuild our units. All is good in that respect.Due to popular demand we are offering a select few rebuild kits for the DIY rebuilder. Even checked to make sure manual valve is positioned correctly. I have a pic of the channels of the vb if anyone who has dealt with TH350 brakes before can maybe point to something I haven't seen before. We still have Park, 2 reverses, (no neutral), brake, 2nd and direct. No debris in pan to indicate that clutches are being missapplied. Detent regulator valve train is removed as well. Bushing held in place in vb with roll pin and in place of what would be the 2-3 shift valve is a "ball bearing" that looks to be able to seal off the governor to reverse passage of vb. Manual valve and modulator valve modified as per instructions. That being the case, several modifications can be made to the transbrake to ensure quick response time and consistent performance. Any ideas out there for this brake? We have the valve body out and checked passages but have no reference as to what needed to be machined out compared to stock. A TH350 will rarely survive at those horsepower levels.
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