Components

Internal Control Powerglide Valve Body
Our next generation in circle track valve bodies. The previous valve body simplified operation by eliminating the bulky hand-operated ball valve pressure control that was once so common, replacing it with a clutch-pedal control. Now you can free yourself of all external pressure controls, letting you concentrate on the competition instead! The TCI® 744500 reverse pattern, full-manual valve body controls line pressure internally and automatically. Put the car in gear and go! The reverse shift pattern allows up shifts without the worry of hitting neutral or reverse. It'll even operate smooth enough to allow you to drive on and off your trailer.

Description	Part No.
Reverse Pattern Internally Controlled Circlematic Valve Body	744500
Low-gear Only Internally Controlled Circlematic Valve Body	744600

External Control Powerglide Valve Body
Our valve body eliminates the need for external valving of line pressure when using a straight pump drive. This full-manual Circle Track Valve Body can be easily installed. The design allows you to operate using the stock transmission detent linkage. Simply connect a clutch pedal to transmission detent lever supplied with kit. Depress the pedal, place the transmission in gear, ease the pedal out and the car moves. Forward Shift Pattern.

8-Inch X-Long Yoke For 27 Spline Transmissions

Your driveshaft is the critical link between your transmission and the rear end. The new TCI® 8-Inch X-Long Yoke for 27 Spline Transmissions avoids yoke “pull out” and “bottom out” which can lead to extreme transmission & rear end damage. This high-strength, forged steel construction yoke is designed to handle the extreme conditions found with high-end circle track racing drivetrains featuring the GM Powerglide, TH350, Brinn Transmissions and any other 27 spline output shaft transmission.

The TCI® 8-Inch X-Long Yoke is stronger than billet-designed components and is perfect for any transmission using the 27-spline output shaft. This yoke uses the popular and time-tested 1310-style U-joint. For anyone needing an extra margin of safety to avoid either yoke pull out or transmission housing bottom out conditions, this is the right part for you.

Description	Part No.
8-Inch X-Long Yoke for 27 Spline Transmissions	966810

Powerglide "Kick-Out" Steel Transmission Oil Pan

For asphalt cars. Prevents oil starvation in corners. One extra quart capacity. Comes with mounting hardware. Moves filter pickup to right side of pan.

Description	Part No.
Powerglide "Kick-Out" Steel Transmission Oil Pan	528321

Push Start Kit
Allows Circlematic transmissions to have push start capabilities. Lightweight; easy bolt-on installation. Replaces stockPowerglide servo cover. Has 1/8" NPT port for line pressure check.

Description	Part No.
Powerglide Push Start Kit	744409

Circlematic Kit
This kit allows you to build a Circlematic pedal type transmission. All you need is a good Powerglide core, tools and some general transmission knowledge. Components include dipstick, cast pan, 744300 valve body, front pump drive, steel clutch hub, cooler, filter, gaskets and seals.

Description	Part No.
Circlematic Pedal Conversion Kit	740001

Circlematic Planetaries

Description	Part No.
Standard 1.82 Planetary	747501
4-link suspension, 1.82	747502

Powerglide Clutch Pedal Kit
For use with new pedal type valve body (TCI® 744300). Includes universal mount pedal (floor mount or hang mount), master cylinder, pusher slave cylinder, #2 braided line (24"), fittings and mounting bracket (744407). Mounts cylinder to Powerglide transmission.

Description	Part No.
Kit	744400
Pusher Slave Cylinder only	744405
Mounting Bracket only	744407

Powerglide Front Pump Assembly
For Circle Track applications with internal clutch valve body. This is a replacement front pump for our internal control valve Circlematic transmissions. Stator support is removed for direct drive clearance.

Description	Part No.
Powerglide Front Pump Assembly	743402

Circle Track Shifter
Lightweight, easy mounting, with solid linkage connections. This shifter is everything you need for circle track racing and available at half the cost of a drag race shifter. Comes complete with a 29" long adjustable linkage rod and spherical rod ends.

Description	Part No.
Circle Track Shifter	748011

Lightweight Quick Mount Shifter Bracket
For standard length Powerglide transmission. Attaches to tailhousing, perfect for tube chassis cars with aluminum interiors. May be adapted for use with other automatic shifters.

Description	Part No.
Lightweight Quick Mount Shifter Bracket	748014

Electric Brake Shut-Off
Racers want every advantage possible. The new TCI® Electric Brake Shut-Off allows the driver to electrically shut-off the right front brake caliper to enhance corner entry handling in dirt, circle track racing applications. The easy-to-install solenoid mounts directly into the brake line, anywhere between the master cylinder and caliper. A flip of the switch from the inside of the car by the driver activates the lightweight 6061-T6 aluminum encased, continuous duty solenoid. This high-quality solenoid blocks fluid flow to the right front caliper, eliminating the common “push or tight” condition experienced under corner entry braking.

The TCI® Electric Brake Shut-Off features a compact solenoid design so it can be discretely mounted, regardless of your application. The heavy-duty solenoid handles up to 3000psi and incorporates a waterproof seal to handle frequent high pressure washings. Best of all, the solenoid requires only a single amp of current so it won’t place a drain on your electrical system. The TCI® Electric Brake Shut-Off works with all hydraulic brake systems, making it perfect for stock cars, modifieds and late models.

Description	Part No.
Electric Brake Shut-Off	861200