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For Sale: Hughes Performance 34-3X TH400 transmission with transbrake

Rated for use with up to 1,000 horsepower!



2244 W McDowell Rd, Phoenix, AZ View Map


Part number 34-3X is our Extreme Duty Street/Strip series TH400 transmission with transbrake. We rate this unit for use with up to 1,000 flywheel horsepower, although it can typically handle upwards of 1,100 - 1,150 flywheel horsepower in many street/strip applications.

Features of this transmission include the following:

~ OEM Chevrolet TH400 transmission case
~ New heavy duty 4-inch extension housing
~ Billet steel input shaft
~ Cast iron forward drum broached for oversize input spline
~ Forged steel forward clutch hub
~ Billet aluminum forward piston
~ Billet aluminum direct piston
~ Billet aluminum intermediate snap ring support
~ Cast iron direct drum with Borg Warner 34 element sprag
~ Borg Warner low roller clutch
~ 6 red racing forward frictions and new steels
~ 6 red racing direct frictions and new steels
~ 4 red racing intermediate frictions and new steels
~ High static carbon rear band
~ Thrust washers replaced with Torrington roller bearings
~ Center support modified to dual feed direct drum
~ GM front pump with .125-inch converter feed restrictor
~ GM sun shaft, intermediate shaft, and output shaft
~ GM planetary gear sets, 2.48:1 1st, 1.48:1 2nd, 1.00:1 3rd
~ Pro Series cast iron transbrake valve body
~ Reverse shift pattern (P-R-N-1-2-3)
~ Teflon sealing rings
~ All new bearings, bushings, seals, and gaskets
~ High flow filter
~ Deep cast aluminum pan with magnetic drain plug
~ Dyno tested to verify all functions

Buick/Oldsmobile/Pontiac case also available at no additional cost (part number 34-3BX).

JW SFI-certified bolt-on bellhousing options available at additional cost.

Reid Racing SFI-certified transmission case and bellhousing options available at additional cost.

Powdercoating available at additional cost.

Higher horsepower options available at additional cost.


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Contact Hughes Performance for freight quote. International shipping available.
Phone #
Phone2 #
(800) 274-7223
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Ad #182666683
Expires on: 01/10/2017
Posted: 10/18/2016, ad expires in 75 days
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Ad posted by:
hughesperf (#460909)

Hughes Performance
2244 W. McDowell
Phoenix, AZ 85009
(602) 257-9591

Member Since: 02/16/2010
Phone Number: 602-257-9591
Phone Number: (800) 274-7223

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106 Main Street, North Adams, MA 01247
Toll Free: 866.326.9227 • Tel: 413.663.3496 • Fax: 413.663.3615 • Email:

Execution Stats: 0.122 sec / 8.1 MB used / 8.2 MB peak