I have a 2006 Silverado Vortec Max. Does anyone know what i have from factory. Like, heads-L92?, rear end 4l70?, I know it has 4:10 gears. Lt has a LQ9 6.0 L, is that ALUMINUM block?

VORTEC MAX PACKAGE: includes (LQ9) Engine, Vortec high-output 6000 V8 with "VortecMax" engine cover, (M70) Transmission, 4-speed automatic, super duty, (GT5) Rear axle, 4.10 ratio (includes (GT4) Rear axle,(G80) Differential, locking, heavy-duty, rear, (ZX3) Suspension Package, Ride-Control, (KC4) Cooling, external engine oil cooler, (KNP) Cooling, external transmission oil cooler, auxiliary, and (Z82) Trailering equipment, heavy-duty (NHT)

 

Heads: 317
Trans: 4l65e
Rear: 14b SF 9.5"
Block: LQ9 (iron)

The aluminum block 6.0 is the LS2 (in the TBSS). The LQ4 and LQ9 truck engines are iron blocks.

 

M70 rpo should be 4l70

 

isnt the only difference an input speed sensor?

 

Correct.




Info - New Product Announcement - 4L70-E (M70) Automatic Transmission #05-07-30-026 - (Oct 7, 2005)

2006 Chevrolet Silverado, TrailBlazer SS

2006 GMC Sierra

with 4L70-E Automatic Transmission (RPO M70)

General Motors Powertrain required a version of a current production rear wheel drive transmission capable of handling higher torque and horsepower without going to a larger size transmission. As a result, the 4L70-E was created. Very much like the 4L65-E, the 4L70-E shares many of the same components and adding premium materials and additional manufacturing processes, the 4L70-E is capable of handling up to 400 horsepower and 430 foot-pounds of torque. It is also capable of increasing shift speeds up to 6000 rpm.

The 4L70-E will be first introduced in some 2006 mid-size sport utilities and full-size pickups. The 4L70-E will be identified as RPO M70. The M70 will use the large 300 mm (101K or 112K) torque converter. Some M70 models will be the first 4L60 series transmissions to receive the new input speed sensor (ISS) .

Below are the 2006 4L70-E applications and models:

• Sport Utility 4L70-E models with ISS: SKD/TKD

• Full-Size Pickup 4L70-E models: CMD, CWD & KMD

Important: The following graphic and table describe only the essential components that make up the M70 transmission model and will not identify all parts.






The following identifies the 4L70-E (M70) components and the components it shares with the 4L65-E (M32) transmission.

Item Number
Part Description
ID Feature
RPO M32
RPO M70

1
300 mm/112K Torque converter (1)
• Identification code label affixed to the convert cover

• Outer diameter & lug size
X
X

2
5-Pinion input carrier Asm. (662)
Number of pinion gears
X
X

3
7-Plate 3-4 Clutch Asm.

(7 friction, 6 steel plates)
• Number of friction plates

• Steel & apply plates have "HD" stamp

• Friction plates have Identification stripe
X
X

4
5-Pinion Reaction Carrier Asm. (681)
Number of pinion gears
X
X

5
Reaction Internal Gear Asm. (684)
3 machined grooves
X

6
Output Shaft (687)
One identification band
X

7
HD Low and Reverse Roller Clutch Asm.
Bronze clad cage
X
X

8
Input Sun Gear and Forward Sprag Asm (642)
Paint marking
X
X

9
Input Turbine Shaft
One identification band
X
X

10
Stator Shaft
Darken splines
X
X


Refer to the appropriate SI section for additional repair, diagnosis or description information.



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Good info, thanks for posting.