MonteCarlo31

Just wondering if anyone can confirm the 1/2 tons will get a 6 speed autos?

chevz7102

truck trend said the 2009 will have a 6 speed for the 5.3l

MonteCarlo31

Wonder if the V max will get it. 6.0 6L90E and 9.5" rear. sounds like a yota fighter to me.

xchevyx24

i would love if my truck had a 6speed

MonteCarlo31

I believe speartec or however you spell it is making a kit to retrofit the 6 speed into your truck w/ the 54x ECM. Only think you need to do is lengthen the drive shaft

xchevyx24

hmm sounds intresting, i wonder how much$$?? im sure it would trash my warranty.

Neil 6.0

Should know for sure next week...

fastnblu

iTrader: (2)

What does the 54x ECM come in? I seem to remember Speartech doing a retrofit but using a LS2 outta Vette & 6spd. auto. They used a piggyback w/h to make it work. It's not just a simple attach to your 5.3 7 & you're good to go. The CAN creates problems. Otherwise, if I could just attach to my LM7, I'd want to do this. I'm sure others would do the same on Gen3 4.8, 5.3, & 6L. Correct me if I'm wrong on this.

MonteCarlo31

x54 are LS2 vehicles, nnbs trucks suvs etc. You do have to keep your ECM/BCM if you have a pre x54 but from what I read you could use the new one (if your x54 equipped)

fastnblu

iTrader: (2)

I really don't care what I upgrade to, long as it handles hp & weight of a truck. I may stay w/4L6xE, only if it's built, i.e. FLT Level 5. A 4L80E seems a very popular conversion. But, I really like the idea of 6 gears for gas mileage & ratio between gears. That leaves a T56 conversion or this, the 6spd. auto. I like to plan in advance. As it sits now, my 04 5.3 truck would be easiest to stay w/ a Level 5 4L6xE. The 80e is slightly more involved but strong like bull. The t56 gets more complex yet fun to drive. I read a post saying u can't keep a clutch in t56 - equipped trucks( weight & pwr don't mix). It sounds like for 6 spd. auto, I'd be swappin motors to make it happen. That drives up cost big time. Manual would be most fun, but not @ expense of durability. Hopefully, others will do a 6 spd. auto retrofit ( GMPP, Nelson,etc.).