Bringing the Direct drum to a stop from full speed on the 1-2 shift, requires a band that is designed to withstand the shock-load, efficiently clamp the drum surface without excessive slippage, heat build-up or wear.  It must also be able to release the drum with the same efficiency for a clean 2-3 gear change.

To assure the ultimate in 2nd gear shift performance and reliability, we utilize and supply a complete line of the best 2nd gear (kickdown) bands available. 

From our Pro Series Flex bands right up to the Ultimate Solid type, Carbon lined Super Band. we have the best band for your specific application. 

 

SUPER DUTY BILLET STRUTS also available to prevent flexing of the O.E.M. strut for enhanced reliability and quicker, positive shifts.

Our replacement pumps are fully remachined, blueprinted and modified to provide peak performance.   HIGH VOLUME PUMPS designed to increase cooling and lubrication in high horsepower, heavy and certain types of competition vehicles, are also available.

 

Replace your DIRECT DRUM to add more clutch capacity or obtain proper seal ring sealing when the inner ring surface is grooved or pitted.

 

These drum are surfaced to the proper finish to maximize band contact for improved band life and cleanest 1-2 shift characteristics.  A new premium quality bushing is pressed in to retain the proper centerline and prevent direct seal ring wear and leakage.

 

Drum is designed to hold 4 clutches and with the clutch capacity increase kit (piston and pressure plate-shown below) 5 clutches can be installed.

 

We also recommend the installation of new piston release springs to obtain the correcct amount of spring pressure to ensure firm upshifts and prolonged clutch life.

This kit accomodates increasing your 3rd gear clutch capacity by as much as 25% without changing the existing drum.  By utilizing the same thickness of frictions and steels, an additional clutch and steel will be added, to substancially increase torque capacity under high performance, racing or heavy load conditions.

 

This kit makes an existing 3 clutch drum a 4 clutch drum or an existing 4 clutch drum a 5 clutch drum

         -machined apply piston, pressure plate and matched selective retainer snap ring 

 

 

HIGH GEAR RETURN SPRINGS and BILLET RETAINER    The life of the high gear clutches under severe duty depends the proper apply pressure of the high gear return spring assembly. These new springs assure clean 2-3 upshift timing and prevent high gear clutch drag in higher r.p.m. 1st and 2nd gear ranges, which leads to premature clutch wear and early failure.

The Billet Aluminum Retainer maintains even apply pressure and prevents the possibility of retainer failure.

 

This direct replacment planetary assembly is constructed wih a vastly stronger, Billet Steel spline, replacing the inferior cast aluminum spline of the O.E.M. planetary.

 

Available with either stock thrust washer or Torrington bearings.

Either version available for 1962-1975 OR 1976-1993 output shaft spline.

SEE ALSO our ECONOMICALLY PRICED, 5 Pinion Steel Carrier Planetary Set [CHECK "NEW PRODUCTS" FOR DETAILS]

HELICAL LOW GEAR SETS (2.77:1 ratio) with washers or Torrington bearings.

These BILLET STEEL or BILLET ALUMINUM units, resolve the breakage prone factory welded 904 -727 conversion planetaries used by other suppliers.  These Billet sets, can be used with transbrakes 

 

OTHER RATIOS OF 2.28:1; 2.10:1 STRAIGHT CUT units are also available on special order.

THE "ULTRA SPRAG" is the strongest, most reliable, roller clutch available.

For years the roller clutch (often referred to as the sprag) in the Torqueflite 727 was the weakest link and feared by most for its' devistating impact on the transmission if it failed.  The steep ramps and weak cast-in support in the rear of the case would often fail in the event of driveline breakage or low gear burnouts.

Attempts were made to reduce this problem by drilling and threading the outer race to permit bolts through the case to anchor it more securely, however under high torque applications the outer race would fail at the drilled bolt holes often leading to high drum explosion.

 

 

The new design in roller clutch utililizes 16 rollers instead of the stock 12 providing a 30% apply capacity increase.  The ramp angles on the outer race are substancially reduced resulting in much less outward shock load and a thicker stronger outer race preventing breakage of the outer race.  The spring cage is dramatically heavier than the stock unit to prevent the common rollover problem.

The roller race is secured to the case with 4 Grade 8 screws installed into the existing rear support screw holes.  No extra drilling is required.

Attempts have been made to resolve this problem by installing expensive roller bearings between the surfaces.  This however can lead to other problems such as weakening the support (breaking it off on hard accelleration) and losing the seal between the support and the shaft and drum allowing fluid to leak past and not lubricate the planetaries-burning them up.

We have greatly reduced the likelyhood of damage from momentary lack of lube by burnishing the aluminum support on both surfaces with Molybdenum creating a barrier with a 140,000 psi of abrasion resistance.  This support also reduces the power robbing friction experienced with stock support 

 

The BILLET STEEL REAR SUPPORT provides the ultimate drivetrain stability and axial support possible for the 727.  Its' inherent strength effectively reduces the deflection and shaft misalignment that can lead to accellerated wear on clutches, planetaries and bushings, resulting in greater reliability and reduced component drag.

 

 

-Billet Steel Rear Support,

-Rollerized Low/Reverse Drum,

-Modified, Light weight Park gear; and

-Billet Aluminum Governor Eliminator

 

PRESSURE PLATES   One area that needs close attention in the Torqueflite is that of the pressure plates.  Both the forward clutch pack and the high clutch pack pressure plate (located immediately under the snap ring) are notorious to warping from heat and pressure.  They must be checked very closely with a straight edge or 150 grit emory paper on glass to make sure that they are making contact on their entire surface.  Because the frictions and steels depend on a thin layer of fluid between them, the apply of uneven pressure will squeeze the fluid away and allow steel to friction contact resulting in clutch slippage and burnup.   To obtain long service life of frictions and maximum performance, we make available new "true" pressure plates. 

 

 

 

Several sanctioning associations require the installation of such a venting system. 

 

 

NEW BILLET STEEL 4.2:1 KICKDOWN BAND LEVER  This lever replaces the 2.9, 3.2, 3.8 ratio units in your stock unit.  It will increase the clamping capacity of the 2nd gear apply band (remember it has to come to a complete stop), providing an improved 1-2 shift and improve band life.  Its' billet steel construction makes is substancially stronger than the stock and other cast apply levers, especially important under the increased loads and pressures of high performance and race transmissions.

 

REAR DRUMS and BANDS  Because the rear drum and rear band are not applied in an upshift sequence they often don't need replacement.  However if they show signs of wear or if you are installing a transbrake, they should be replaced.   We can supply these components.