Black Shepherd Auto LLC

Black Shepherd Auto LLCBlack Shepherd Auto LLCBlack Shepherd Auto LLC

Black Shepherd Auto LLC

Black Shepherd Auto LLCBlack Shepherd Auto LLCBlack Shepherd Auto LLC
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The Transmissions

Performance Upgrades

At Black Shepherd Auto, we use only quality parts brands like Raybestos, Borg-Warner, Koyo, Motorcraft, and Sonnax in our builds.  Our valve work, internal machining, and spring stiffness modifications provide dependable leak-free engagement with a near-factory shift feel.


All of our builds are 100% streetable.  Everything we do here is to increase longevity and reliability, regardless of the horsepower rating.  Internals are finish-machined during assembly to ensure our custom clearance requirements are met in every single unit.  This is the ONLY way to have total control of the clearances due to every assembly having unique dimensional stackups.


All units are available in 2wd or 4wd configurations, 4r100 or E4OD, same price.   Units built for v10 engines will retain their factory aluminum planet carriers.  There is no option to upgrade aluminum planet carriers to steel for the gasoline transmissions.


Along with payment, an acceptable core is required at time of sale.  See PURCHASING page for details.

Daily/Tow (450hp)

Performer (500hp+)

This is our most popular unit.  This transmission is great for a daily driver, plowing, towing, working trucks, and anyone who just wants a reliable unit that will outlast any stock or factory build.  This transmission will shift like new, but will have a tremendous increase in reliability, longevity, and power handling.


 

This unit includes the following:

  • New premium frictions and components
  • Custom clearancing throughout after initial blueprinting and inspection
  • Machine work to eliminate all factory weaknesses and failures
  • Machined clutch assemblies to allow for additional full-thickness frictions and steels
  • Machine work for increased stability
  • Elimination of forward drum failure
  • Hydraulic modifications to increase holding power and reduce slippage and leakage
  • Modified valving for dependable shifting and consistent feel
  • Will handle stock engines all the way up to 450hp
  • Available for 7.3 and 6.8 powered trucks

Performer (500hp+)

Performer (500hp+)

The Performer units are built for 500, 600, 750 and higher horsepower, and include the following:


  • New premium frictions and components
  • Custom clearancing throughout after initial blueprinting and checking
  • Machine work to eliminate all factory weaknesses and failures
  • Machined clutch assemblies to allow for additional full-thickness frictions and steels
  • Stability enhancements to reduce parasitic losses while allowing for better dispersion of critical stress
  • Improved concentricity of internal rotating parts to minimize vibration and transmit for horsepower to the wheels 
  • High strength steel internals in failure areas depending on hp requirements
  • Thrust washers replaced with roller bearings in critical high rotational areas
  • Realignment of planetary gear mesh
  • Significant drum strengthening to prevent catastrophic failure
  • Machined pump and control bodies for improved power handling performance
  • Elimination of forward drum failure
  • Hydraulic modifications to increase holding power and reduce slippage and leakage
  • Modified valving for dependable shifting and consistent feel
  • Available for 7.3 trucks only

Torque Converters

Torque Converters

Each of the units includes a specific torque converter custom built to match the performance level of the transmission.  These are NOT mass-produced eBay torque converters, they are expertly hand-built the same way we build the transmissions.

  

Just as with the transmissions, an acceptable core is required with purchase. 


We do not sell torque converters separately.

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