TH400 Beast Transmission 2 or 3 speed 1200+ HP!



Enter Vehicle Info

2WD or 4x4

Case Upgrades

Gear Ratio Upgrades

Shift Feel


Add-ons total:


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    400 Beast Transmission 1200 HP


Now with Billet vb upgrade to make the Transbrake available in 1st or 2nd gear making this Beast a 2 or a 3 speed Turbo 400.

This TH400 was designed for the extreme high performance street or strip car or truck  2wd  or 4×4 applications for engines producing up to 1200 hp .


If you are in a RUSH or need a transmission sooner we can not help you Sorry.

We focus on quality not quantity this is why we have so much success!

APT Performance Features:
  • Coan Racing Products
  • Alto red eagle racing frictions ,kolene steels 6 forwards 6 directs , 4 intermediates

  • High performance reverse band provide greater torque capacity and more positive band apply.

  • Hi-flow race ready front pump with larger gears for improved volume .

  • Coan 300mm billet input shaft and drum with larger splines for much greater durability.

  • Coan Billet steel forward clutch hub . 

  • Billet Aluminum direct drum w/34 element sprag w/ billet race increases durability & strength, billet pressure plate also.

  • HD Straight Cut Planets for Improved gear train strength (but they are Noisy)
    • OEM Helical also available for street use specify when ordering .

Billet vb for 1st or 2nd gear transbrake action making this into a 2 speed without doing anything but moving the shifter.

2.48 1st
1.48 2nd
  • With a new Aluminum pan .

  • Factory Case , Tail W/ Aluminum Pan Requires SFI Approved Sheild .
  • SFI Ultra Bell Available for BPO Chevy Ford Chrysler and AMC.
We prove to our customers what products we use with a step by step Photo shoot of each performance Build we do by request you can send in photos of your ride and we will include them in the shoot and post them on our main site and Socials.
This is an Animal you can count on with 30 years experience building your transmission!

Straight to your Business or Residence.  In some cases You may have to pick it up at the nearest Terminal to you !

Submit Your Address Before Purchasing to check for any shipping charges .

Worldwide Shipping Available ask for Quote !

1 Year Warranty on Transmission only.

In the event of a warranty Buyer pays 100% Return Shipping !

Sometimes SHIz Happends In the event of a warranty the Buyer pays 100% Return Shipping !
Once your transmission arrives we will inspect it and repair or rebuild it and ship it back to you at No charge for Free Delivery Areas only .
We will call and advise you if we find any Converter installation clearances Issues and advise you how to correct it so it wont ever happend again.
Feel Free to contact us for more tech info or details or changes you want made .

Unleash The Animal In Your Ride Today!


Additional information

Weight 200 lbs
Dimensions 37 × 24 × 25 in
Case and Bell upgrades

Factory Case


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