will 2009 bring the 6 speed?
04-12-2008, 11:08 AM
#12
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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.).
If I were in your shoes i'd probably do a 4L80, while a T56 would be sweet the clutch would worry me + i'm lazy and hate shifting. My buddy has a 6.0 4L80E in his 06 2500 sierra, it's a heavy pig CCLB 4x4. He has towed 20K lbs+ with it. with 60K on the clock the thing doesn't miss a beat, it's a stout trans for sure.
04-12-2008, 06:19 PM
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04-13-2008, 11:27 AM
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yes it will new order guide is now open.
http://eogld.ecomm.gm.com/NASApp/dom...ID=6998&type=0order guide.
http://eogld.ecomm.gm.com/NASApp/dom...ID=6998&type=0order guide.
04-15-2008, 10:58 PM
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Anybody know about the durability of the 6 speeds? If it were like the 80e it would be awesome. My work truck is an 02 2500hd that has almost 300k on it with the original drivetrain, and **** poor maintainance, but runs like new and pulls a 28' trailor almost every day of its life.
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