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Turbo 400 TH400 Heavy Duty Performance Transmission 2WD : 9" Tail with Free Transmission Fluid
Turbo 400 TH400 Heavy Duty Performance Transmission 2WD : 9' Tail with Free Transmission Fluid

Turbo 400 TH400 Heavy Duty Performance Transmission 2WD : 9" Tail with Free Transmission Fluid


Mega Monster Transmissions Engineered to Dominate, the Turbo 400Mega Monster transmission is ideal for vehicles powered by engines producing up to 500 horsepower using pump gasoline. Now Includes the best Full Synthetic Transmission Fluid on the Market provided by Burn Rubber Brewing Co. For Free!

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Questions? Call Us 800-708-0087

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Torque Converter
Torque Converter Upgrades
Converter Bolt Circle
Rear Sizes
Shift Firmness
Case Color (shades may vary*)
Case Type
Core and Warranty Options (Please Select One)
Note: A core deposit is required on this product please choose an option below
A) We'll pick up and Build Your Original Core - 3 Yr Warranty activated when order ships (+$200.00)
C) No Core will be returned - Pay Core Fee to Activate 3 Yr Warranty (+$600.00)
Pan Style
White Glove WOWanty Upgrade
Warranty Information (Check Box to Acknowledge)
All warranties are contingent upon core returns and/or fees. If the Transmission & Converter cores are not returned within 30 days or a core fee is not paid I am opting out of any warranty coverage.
Popular Accessories (These have been Discounted for your transmission package!)
Free 12 Qts. of Burn Rubber Brewery Premium Synthetic Trans Fluid
Torque Converter Bolts (3) (+$9.99)
Universal Transmission Mount (+$19.94)
Transmission Flush - Dr. Tranny Kooler Kleen (+$19.98)
Universal Dust Cover (+$25.00)
Trans Cooler Kit #1403 (+$49.95)
Fillertube & Dipstick (+$84.99)
Give Me A Name
Be a MonSTAR and Upload a picture of your vehicle.
Time commitments may vary as this is a custom built transmission

Mega Monster Transmissions
Engineered to Dominate, the Turbo 400 Mega Monster transmission is tough enough to withstand the rigors of even the toughest street machines delivering tire-spinning shifts race after race. It is ideal for vehicles powered by engines producing up to 500 horsepower using pump gasoline. Equipped with a Manual/Automatic valve body, most units allow you to manually shift the vehicle into each gear change or, by placing it in the drive position, remain fully automatic. In either mode, you get a racetrack shift that bangs through the gears giving you all the right to say "Eat My Shift!". When you use the manual gear selection feature, the Mega Monster upshifts and downshifts when you move the shift lever, please note, in order to have complete control of the RPM shift timing you must upgrade to a full manual valvebody. When you select the normal drive position, the transmission retains its firm, automatic shifts for the ease of driving you look for in an automatic transmission.

The Mega Monster Transmission features: the latest technology in our industry with only the best internal components for increased strength, dependable performance and monster torque capacity. All Monster transmissions are custom made in the USA and quality checked to ensure your peace of mind. For the system to operate properly, all throttle linkage, vacuum lines and kick-down components must be connected and adjusted properly.


*Special Note: If you are planning a direct transmission swap it is recommended to re-use your existing tail-housing and speedometer gear for your new unit. This does not come equipped with a new Speedometer Gear. Certain vehicle specific tail-housings may not be available with this unit. In most cases, you will be required to swap your original tail-housing (this will NOT void your warranty). Please Contact Us to purchase a proper speedometer gear for your application or if you are unsure if your tail-housing will need to be reused.

Back in 2011 I bought a Turbo400 from Monster Transmission. Everything's working out really nice. I just ordered a gear for it and changed the speedometer reading. Really I love the company. Very prompt and I enjoyed the Transmission a lot.
Verified Buyer: 
I recently purchased a monster transmission, corey helped me out. She was perfect in understanding what I needed, asked the right questions. She walked me through the entire process of ordering, the build and test stages of how the transmission are secured. Charlotte of the tech dept, I was reffered to for the pick up of the transmission, she was extremely helpful. I cant say enough about monster, I highly recommend Monster Transmission. If you ever have transmission troubles Monster Transmissions is the place to go and get them. Great Company, Great People. Again, can’t say enough about this company, I look forward to purchasing all my transmission needs from them in the future. Great job Monster, appreciate you.
Verified Buyer: 
Long tail Th400
I've put some miles on my trans since I got it...Seems to be fine...If I had to do it over,, I'd go for the level 3 shift firmness...Mine is level 2...Shifts great...but as a old hot rodder,,,id like a second gear tire chirp...
Verified Buyer: 
I purchased a Monster Transmission for my 1980 3/4 ton Chevy truck and to have it adapted so it can be made up with the 208 transfer case. The staff was excellent. They worked with me to get everything ironed out that needed to be done so that it would fit properly. They got everything ordered, transmission went in, no issue and it has been running great ever since. So excellent job Monster and I tell you what; the customer service with these guys is outstanding.
Verified Buyer: 
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