17% off
Custom Turbo 400 TH400 Performance Super Duty Transmission 4WD 4x4
Turbo 400 TH400 Performance Super Duty 4WD 4x4 Transmission


Custom Turbo 400 TH400 Performance Super Duty Transmission 4WD 4x4

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0
5

Custom built to handle up to 750hp/700tq, Now you can say Eat My Shift! Great for towing and off-road use.

$1,499.00
$1,799.00
$300.00(17%)
SS4-TH400

Questions? Call Us 800-708-0087

Build Your Order Online

Torque Converter
Torque Converter Perf Upgrades
Shift Firmness
Case Color (shades may vary*)
Output Shaft Length (End of case to end of shaft)
Pan Style
Valvebody
Other Performance Upgrades
SFI Approved Trans Scatter Shield [+$379.00]
Lower Planetary Gear Sets [+$1,450.00]
Smooth Cam Drum [+$275.00]
Core and Warranty Options (Please Select One)
A) We'll pick up and Build Your Original Core - 90 Day Warranty activated when order ships [+$150.00]
B) Return your core using our Core Return Service within 30 days of shipment - 90 Day Warranty activated when core received [+$250.00]
C) No Core will be returned - Pay Core Fee to Activate 90 Day Warranty [+$500.00]
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.
WOWanty Plans *Must return core or pay core fee to extend warranty
White Glove WOWanty Upgrade
Popular Accessories (These have been Discounted for your transmission package!)
12 Qts. of Burn Rubber Brewery Premium Synthetic Trans Fluid [+$149.93]
Fillertube & Dipstick [+$39.00]
Trans Cooler Kit #1403 [+$49.95]
Torque Converter Bolts (3) [+$9.99]
Universal Dust Cover [+$25.00]
Transmission Flush - Dr. Tranny Kooler Kleen [+$19.98]
Give Me A Name
Time commitments may vary as this is a custom built transmission

SS Mega Monster Transmissions
Engineered to Dominate, the Turbo 400 SS 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 750 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 SS 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 SS 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.

 Precision Master Overhaul Kit Includes:
 New Paper Gaskets, O-rings, Teflon rings
 New Rubber Seals for Drums & Pistons
 New Steel Check Balls
 New Double Lip Seals (Front & Rear)
 New Governor Filter

 New Kolene Steel Plates
 New High Performance Race Clutches
 New Brass Washer Kit "NO PLASTIC HERE"
 New Bushing Kit 
 New Torrington Bearing Kit

 Superior High Performance Shift Reprogramming Kit
 Super Pump
 New Pump Bushings
 New Stator Bushings, Rotor Gears & Sealing Rings
 Modified Boost Valve Assembly
 New Boost Valve Spring


New HD 34 Element Sprag
 Updated / Modified Accumulators
 Heavy Duty Kevlar Bands
 High-Temp. Tolerant
 Improved Holding Power
 Added Strength At Strut Support

 Updated & Modified Governor with Spring Kit and Nylon Gear
 Recalibrated Valve Body
 Recalibrated Shift Plate
 New High Flow Filter
 New Low / Reverse Heavy Duty Sprag
 New Heavy Duty Accumulator Spring
 New Modulator


*Special Note: If you are planning a direct transmission swap it is recommended to re-use your existing extension-housing and speedometer gear for your new unit. This Monster 700R4 Transmission does not come equipped with a new Speedometer Gear. Certain vehicle specific extension-housings may not be available with this unit. In most cases, you will be required to swap your original extension-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 extension-housing will need to be reused.



Rock crawler
Great trans love the full manual valve body with with engine braking and it takes all the abuse I can throw at it
Verified Buyer: 
5
I have one of ya’ll Monster Transmissions. I’m tickled to death with it, It’s working perfect, and I refer you all to everybody. And I’m getting ready now to finally get another one for my other pick up. Monster Transmissions are great, Eat My Shift!
Verified Buyer: 
5
They do a great job. Thank you guys!
My customer service rep really helped out in looking up parts for me and everything at Monster Transmission. I bought my transmission package last year. And I needed some extra parts. They do a great job. Thank you guys!
Verified Buyer: 
5
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