A set of Raybestos GPZ clutches with new Raybestos steel plates for high-impact-durability and super-hold on the 2-3 shift.
Borg Warner 29 Element Dual Cage Sprag assembly, the strongest available.
SONNAX SMART SHELL: To eliminate stripping of the splines and breakage common in the factory sun shell; which causes reverse, second and fourth gears not to work; we install the Sonnax Smart Shell. The shell is also balanced to lower drive train vibration.
Sonnax Dual Piston Overdrive Servo: Used with the wide band to withstand wide-open-throttle, while in overdrive, if your PCM is set up to allow it. Anodized red with PerformaBuilt logo laser etched.
A Thirteen (13) vane pump with hardened rings and a full-time lube modification which assures maximum planetary life and cooling.
Max line set at approximately 220 PSI.
PerformaBuilt custom shift kit: A compilation of what we consider to be the best of several known kits; and some unique modifications of our own.
Also included in this unit is the Sonnax Heavy Duty 2-3 Shift Valve. This valve keeps the overrun clutch on, in all gears, to add support to the input sprag assembly. We have also included additional proprietary mods for a quicker 2-3 shift.
Deep Chrome Pan or Optional cast aluminum pan (Additional charge for cast aluminum pan)
There you have it, The Strongest 4L6X and 700R4 available anywhere!!! And, we guarantee it will handle over 1000 RWHP.
This unit also features many other proprietary modifications for performance and durability which help it achieve its unbelievable horsepower capabilities. It will take whatever you dish out and we guarantee it. You won’t find a better unit anywhere.
Please note our Warranty page. This transmission comes with a 1 Year Warranty.
2 YEAR WARRANTY UPGRADE
This option provides you a 2 Year Warranty on your PerformaBuilt transmission for an additional $500.
BUY A TORQUE CONVERTER
If you purchase a torque converter from us you will automatically get the 2 Year Warranty Upgrade.
This transmission will support +1000 RWHP.
All units are available in either 2wd or 4X4. If you have a special application requiring a special adapter or output shaft, please contact us and we will be happy to provide it and quote a price for your special application.
NOTE FOR LSX
The LSX transmission has a removable bell housing which is not included with our transmission. You will need to use your original bell housing and extension housing, but the transmission will have the appropriate output shaft for your application.These items are available at additional cost.
4L70E and 2006 TBSS and 2007 up 4L60E/65E/70E CORE REQUIRED. Once you receive your PerformaBuilt transmission, send us your buildable core to receive your core charge refund.
If you have any questions feel free to call 1-888-744-6542, or email us at email@example.com. We also have Live Chat during business hours; located in lower right corner of this webpage.
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Our Pro Race series transmission is the finest built street/race automatic transmission in the industry. These transmissions are tough and built to handle whatever you dish out. It's rated at 700 RWHP...