The Texas Speed 4L70E Performance Transmission is a fully rebuilt and upgraded 4L70E for two-wheel-drive LS-powered GM vehicles from 2009 to 2013 that use the 17-pin case connector. Texas Speed rates the unit for up to 600 rear-wheel horsepower, making it a direct replacement for a worn factory transmission in a cammed, bolt-on or mildly boosted LS car or truck.
Inside, the transmission gets all new frictions and steels with a 7-clutch GPZ 3-4 stackup, heavy-duty front and rear sprags, 5-pinion front and rear planetary gearsets, a reinforced input drum with billet overrun apply piston, a wide red 2-4 band on a new reverse input drum and a heavy-duty sunshell. The rebuilt pump uses a .500 boost valve and High-Rev vane rings rated to 9,000 rpm, and the rebuilt valve body carries a heavy-duty shift kit that allows full manual downshifts from 3rd through 1st and holding 1st or 2nd at any speed. A Corvette servo with billet 4th apply piston and cover completes the build. Texas Speed covers the unit with a 30 day warranty from delivery.
Specifications
- Transmission: GM 4L70E, 2WD
- Application: 2009 to 2013 GM LS vehicles with 17-pin case connector
- Power rating: Up to 600 rear-wheel horsepower
- Clutches: All new frictions and steels, 7-clutch GPZ 3-4 stackup
- Sprags: New heavy-duty front and rear sprags
- Planetaries: New 5-pinion front and rear planetary gearsets
- Input drum: Reinforcement kit with new billet overrun apply piston
- 2-4 band: New wide red band with new reverse input drum
- Sunshell: Redesigned heavy-duty sunshell
- Bushings: Complete bushing kit with wide rear sun gear bushing
- Valve body: Rebuilt with heavy-duty shift kit and heavy-duty 3rd shift valve; manual 3-2-1 downshifts and 1st or 2nd gear hold
- Pump: Rebuilt with new rotor, vane and slide kit, .500 boost valve, new pressure regulator valve, High-Rev vane rings rated to 9,000 rpm
- 3-4 clutch piston: Redesigned return springs to reduce centrifugal 3-4 apply above 5,500 rpm in 1st gear
- Servo: Corvette servo upgrade with billet 4th apply piston and cover
- Electronics: New electronics throughout including wiring harness and internal PRNDL switch; new filter; complete overhaul kit (seals, gaskets, rings)
- Warranty: 30 days from time of delivery; shipped in a reinforced plain double-wall box
Note: This is the 2WD version. Texas Speed sells a separate 4WD 4L70E for the same model years. Confirm the drivetrain and the 17-pin case connector on the transmission being replaced before ordering. Texas Speed's page does not state whether a torque converter is included or whether a core charge applies.
Vehicle Applications
Texas Speed lists this transmission for 2009 to 2013 LS applications with the 17-pin connector. The vehicle list below is narrowed to those model years; confirm the transmission in the vehicle matches before ordering.
Chevrolet Camaro
- 2010 Chevrolet Camaro
- 2011 Chevrolet Camaro
- 2012 Chevrolet Camaro
- 2013 Chevrolet Camaro
Chevrolet Corvette
- 2009 Chevrolet Corvette
- 2010 Chevrolet Corvette
- 2011 Chevrolet Corvette
- 2012 Chevrolet Corvette
- 2013 Chevrolet Corvette
Cadillac CTS-V
- 2009 Cadillac CTS-V
- 2010 Cadillac CTS-V
- 2011 Cadillac CTS-V
- 2012 Cadillac CTS-V
- 2013 Cadillac CTS-V
Cadillac Escalade
- 2009 Cadillac Escalade
- 2010 Cadillac Escalade
- 2011 Cadillac Escalade
- 2012 Cadillac Escalade
- 2013 Cadillac Escalade
Pontiac G8
- 2009 Pontiac G8
GMC Sierra 1500
- 2009 GMC Sierra 1500
- 2010 GMC Sierra 1500
- 2011 GMC Sierra 1500
- 2012 GMC Sierra 1500
- 2013 GMC Sierra 1500
GMC Sierra 2500
- 2009 GMC Sierra 2500
- 2010 GMC Sierra 2500
- 2011 GMC Sierra 2500
- 2012 GMC Sierra 2500
- 2013 GMC Sierra 2500
GMC Sierra 3500
- 2009 GMC Sierra 3500
- 2010 GMC Sierra 3500
- 2011 GMC Sierra 3500
- 2012 GMC Sierra 3500
- 2013 GMC Sierra 3500
Chevrolet Silverado 1500
- 2009 Chevrolet Silverado 1500
- 2010 Chevrolet Silverado 1500
- 2011 Chevrolet Silverado 1500
- 2012 Chevrolet Silverado 1500
- 2013 Chevrolet Silverado 1500
Chevrolet Silverado 2500
- 2009 Chevrolet Silverado 2500
- 2010 Chevrolet Silverado 2500
- 2011 Chevrolet Silverado 2500
- 2012 Chevrolet Silverado 2500
- 2013 Chevrolet Silverado 2500
Chevrolet Silverado 3500
- 2009 Chevrolet Silverado 3500
- 2010 Chevrolet Silverado 3500
- 2011 Chevrolet Silverado 3500
- 2012 Chevrolet Silverado 3500
- 2013 Chevrolet Silverado 3500
Chevrolet Suburban
- 2009 Chevrolet Suburban
- 2010 Chevrolet Suburban
- 2011 Chevrolet Suburban
- 2012 Chevrolet Suburban
- 2013 Chevrolet Suburban
Chevrolet Tahoe
- 2009 Chevrolet Tahoe
- 2010 Chevrolet Tahoe
- 2011 Chevrolet Tahoe
- 2012 Chevrolet Tahoe
- 2013 Chevrolet Tahoe
Chevrolet Trailblazer SS
- 2009 Chevrolet Trailblazer SS
GMC Yukon
- 2009 GMC Yukon
- 2010 GMC Yukon
- 2011 GMC Yukon
- 2012 GMC Yukon
- 2013 GMC Yukon
Vehicle applications reflect the fitment published by Texas Speed & Performance for this part number. Confirm your engine and cylinder head configuration before ordering.
FAQ
What vehicles does the Texas Speed 4L70E 2WD performance transmission fit?
Texas Speed lists it for 2009 to 2013 two-wheel-drive GM LS cars, trucks and SUVs that use the 17-pin 4L70E case connector. Verify the connector pin count and drivetrain on the original transmission, since the connector changed over the production run.
How much power is the Texas Speed 4L70E rated for?
Texas Speed rates this rebuilt 4L70E for up to 600 rear-wheel horsepower, supported by the 7-clutch GPZ 3-4 stackup, 5-pinion planetaries, heavy-duty sprags, reinforced input drum and upgraded pump pressure.
What is upgraded inside the 4L70E compared to a stock rebuild?
Beyond a complete overhaul kit, the unit gets a 7-clutch GPZ 3-4 pack, heavy-duty sprags, 5-pinion planetaries, a reinforced input drum with billet overrun piston, a wide red 2-4 band, a heavy-duty sunshell, a .500 boost valve pump with High-Rev vane rings, redesigned 3-4 return springs, a heavy-duty shift kit and a Corvette servo with billet 4th apply piston.
Can I manually hold gears with this transmission?
Yes. The rebuilt valve body with heavy-duty shift kit allows full gear-lever-controlled downshifts from 3rd through 1st and lets 1st or 2nd gear be held at any speed or rpm.
What is the difference between the 2WD and 4WD versions?
The internal upgrades are the same. This listing is the 2WD case for two-wheel-drive vehicles; Texas Speed sells the 4WD case separately for the same 2009 to 2013 model years. Order the one matching the vehicle's drivetrain.
Does the transmission come with a warranty?
Yes. Texas Speed provides a 30 day warranty from the time of delivery. The transmission ships in a plain, reinforced double-wall box.
