BTW GUYS JUST PUNCHED UP MY PARTS LOOKUP.... IT SAYS 6L80 AS AN OPTION FOR CK1 CK1 BEING CODE FOR 2 AND 4WD 1500 SERIES, AND A 6L90 FOR CK2 AND CK3

 

Would that be for the Denali or something? Still not on the order guide...

 

your probably right heres the listing for the 6l90... but its bolted to a 6.0 by the code youlle see. looks like the stronger 6l90 will fit and work.

 

The Ly6 Is A 6.0 In The 2500 H.d. So That Means It Should Bolt Up, And For The Most Part Work With A 1500.... I Dont See Why It Wouldnt... Unless Maybe Size Is A Problem...


But Yes You Are Right When I Look Up The 6l80e Is Only Shows With The L92.

 

How strong are they?

 

Not sure how strong in real life they are but, here are the numbers from www.gmpowertrain.com . The 6L90E looks to be pretty damn good.

2008 Hydra-Matic 4L60 Transmission (M30) 32007
Type: four speed rear-wheel-drive, electronically controlled, automatic overdrive transmission with torque converter clutch
Engine range: 2.9L - 5.3L (M30)
Maximum engine torque: 360 lb-ft (488 Nm) (M30/MK2)
Maximum gearbox torque: 610 lb-ft (827 Nm) (M30/MK2)


2008 Hydra-Matic 4L70 Transmission (M70) 32007
Type: four speed rear-wheel-drive, electronically controlled, automatic overdrive transmission with torque converter clutch
Engine range: 6.0L (M32/M70)
Maximum engine torque: 400 lb-ft (542 Nm) (M32/M70)
Maximum gearbox torque: 670 lb-ft (910 Nm) (M32/M70)


2008 Hydra-Matic 4L85 Transmission (MN8) 111606
Type: four speed rear-wheel-drive, electronically controlled, automatic overdrive transmission with torque converter clutch
Engine range: 4.8L - 6.0L gasoline 6.5L - 6.6L diesel
Maximum engine torque: 460 lb-ft (624 Nm) (MN8)
Maximum gearbox torque: 885 lb-ft (1200 Nm)


2008 Hydra-Matic 6L80 Transmission ( MYC ) 52206
Type: Six speed RWD / AWD, electronically controlled automatic overdrive transmission with torque converter clutch. Clutch-to-clutch architecture, with integral Electro / Hydraulic Controls Module
Maximum engine power: 469 bhp ( 349 kW )
Maximum engine torque: 439 lb-ft ( 595 Nm )
Maximum gearbox torque: 664 lb-ft ( 900 Nm )


2008 Hydra-Matic 6L90 Transmission ( MYD ) 32007
Type: six speed RWD / AWD, electronically controlled automatic overdrive transmission with torque converter clutch. Clutch-to-clutch architecture, with integral Electro / Hydraulic Controls Module
Maximum engine power: 452 bhp ( 337 kW ), Diesel: 300bhp ( 223kW )
Maximum engine torque: 531 lb-ft ( 720 Nm ), Diesel: 520 lb-ft ( 705 Nm )
Maximum gearbox torque: 885 lb-ft ( 1200 Nm )

 

The 6l90 and 6l80 have their own controller for the transsmisson separate form the PCM.


Surely for a swap the only thing you would need is the 6l80 with controller, a harness, and reflash the PCM, maybe driveshafts as well. It said to be around the same size as the 4l60. But I think you my need a 58x reluctor wheel for it to work as well.

 

WTF those are the same HP/TQ values GM gives for the new 4.5L Diesel! Looks like it gets the 6L90E and its going in a 1500 sometime!

 

i wonder how hard the 6l80 swap would be in a nbs 1500... my brother has the 5 speed and it is sweet. i guess that would be a 5l80 tho?

 

BUMP! Anymore info on the 6l80/6l90 tranny in a 1500? I'm considering getting a new VMAX next year around this time and I'd love to hear that GM is gonna be putting the 6speed in the 1500 (besides the denali).