Th400 Transbrake

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The Griner. Aluminum Transbrake with or without safe neutral is an optional upgrade. Stage 4 TH400 – Up to 1800 HP Stage 4 TH400 has all the features of the Stage III but includes the 36 element Super Drum and alloy intermediate shaft for more reliability at power levels over 1000 HP. Stage 5 TH400 – 1500+ HP. BTE's TH400 transmission with transbrake is a durable and high performance three speed transmission for all racing types.

We have an excellent track record with our TH350’s. Deep into the 10’s without failure, they have proven to be a very tough unit for a reasonable price. We feel they are a very good choice in cars up to 600 HP/TQ but capable of up to 800 HP/TQ especially in lighter cars. The limiting factor is the stock planetaries. There are aftermarket planets available to make them live at even higher power levels but we usually recommend a TH400 for a dedicated 600+ HP application. Our goal is to provide long term reliabilty. Our base model TH350 has lived at over 600 HP reliably.

As with all Jake’s Performance transmissions they include all new friction clutches, bands, steel plates, soft parts, filter, modulator (if applicable), as well as hydraulic upgrades, and other modifications depending on power level. All TH350 transmissions include a new pan.

Th400 Transbrake Valve Body

Stage 1 TH350 is reliable to over 500 HP/TQ. It’s a very tough unit. It has several key modifications that increase it’s strength. Increased line pressure and lube flow. Additional bushing area, close attention to bushing clearance, blueprinted pump assembly, select cores used, and other areas that our experience has shown other shops and builders are not paying attention to.

PriceBuild #Build Description
$1700TH350-1AAuto shift
$2050TH350-RMVBTBReverse Manual Valvebody with Transbrake

This is our Stage 1 TH350 build with a heavy duty K case core and using a reverse manual valve body with engine braking for rock-crawling or off-road use.

Th400 Transbrake
PriceBuild #Build Description
$2200TH350-RCARockcrawler build
$2550TH350-RCRMVBTBReverse Manual Valve Body with a Transbrake

Our Stage 2 TH350 includes all the features of the Street model plus a 36 element sprag and drum upgrade, special retaining ring on the sprag, and a deep aluminum pan standard. 750 HP/TQ capable.

Th400 TransbrakeTh400
PriceBuild #Build Description
$2200TH350-2AAuto shift
$2550TH350-2RMVBTBReverse Manual Valvebody with Transbrake

Stage 3 TH350 will add a billet 300M input shaft making it good for 800 HP. Typically at this power level we recommend a TH400. Please let us help you with selecting the unit that best suits your needs.

PriceBuild #Build Description
$2450TH350-3AAuto shift
$2800TH350-3RMVBTBReverse Manual Valvebody with Transbrake
Tci th400 transbrake instructions

Th400 Transbrake Valve Body

Upgrades are available. 4340 or 300M input shafts, fully rollerized with lightweight parts for competition applications, low gearsets for heavy cars or truck applications. Call for additional quoting.

Th400 Transbrake Install

Shipping is $200 within the continental United States.