EXtreme Automatics™ Transmission Adapters

Extreme Automatics™ transmission adapters allow the use of a bolt on bell housing so the GM transmission can be used with many different engine models. You cut off the bell housing on the stock case similar to what you would do for a JW® Ultrabell.
EA™ Bell adapters are moderately difficult to install.

***Please read descriptions in their entirety. Images are for illustrative purposes and may NOT ACCURATELY depict each product. It is your responsibility to be well informed before ordering. Please read our Terms of Use for specifics.***

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TH2004R REID® Adapter

The transmission bell adapter for the 2004R allows the use of the Reid® bell housing to adapt the 2004R to the following engines:



TH200-4R
  • Chev LS
  • BOP
  • BB Ford
  • SB Ford
  • Mod Motor Ford
  • BB Chrysler
  • SB Chrysler
  • Toyota 2JZ
  • EXtreme Automatics™ Transmission Bell Adapter includes Bell Adapter, Bolts and instructions.
  • ***Does NOT include bellhousing***

$310.00 + Shipping • Buy Now

TH2004R GM 4L60E Adapter

The transmission bell adapter for the 2004R allows the use of the GM bell housing to adapt the 2004R to the following engines:

TH200-4R
  • GM 3800
  • GM LS
  • GM Echotec 4cyl
  • Holden Echotec
  • Holden Alloytec
  • EXtreme Automatics™ Transmission Bell Adapter includes Bell Adapter, Bolts and instructions.
  • ***Does NOT include bellhousing***

$310.00 + Shipping • Buy Now

TH400 4L60 Adapter

    TH200-4R
  • Retrofits TH400 in place of ALL 4L60s
  • EXtreme Automatics™ 400 to 4L60 Transmission Bell Adapter kit includes Bell Adapter, Bolts and instructions.
  • ***Does NOT include bellhousing***

$305.00 + Shipping • Buy Now

4L80E REID® Adapter

  • The transmission bell adapter for the 4L80E allows the use of the Reid® bell housing to adapt the 4L80E to the following engine models.
  • EA 4L80E REID& Bellhousing Adapter
  • BB Ford
  • SB Ford
  • Mod Motor Ford
  • BB Chrysler
  • SB Chrysler
  • Toyota 2JZ
  • EXtreme Automatics™ Transmission Bell Adapter includes Bell Adapter, Bolts and instructions.
  • ***Does NOT include bellhousing***

$325.00 + Shipping • Buy Now

4L80E Adapter with CNC'd front pump half

  • The transmission bell adapter for the 4L80E allows the use of the Reid® bell housing to adapt the 4L80E to the following engine models.
  • EA 4L80E Adapter with CNC Pump Half
    Please specify 91-95 or 97-UP
  • BB Ford
  • SB Ford
  • Mod Motor Ford
  • BB Chrysler
  • SB Chrysler
  • Toyota 2JZ
  • EXtreme Automatics™ Transmission Bell Adapter includes Bell Adapter, Bolts and instructions.
  • ***Does NOT include bellhousing***

$595.00 + Shipping • Buy Now

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