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6 Spd

ajswenson

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ajswenson Enthusiast

ajswenson

Posted
Posted

Hey guys, just curious and I probably already know the answer "it's not worth it" but I thought i'd ask anyway. I have a couple of friends that have the new 6 spd's in their 1500's and have become very jealous. Would it be possible to put one in my 2007?

Of course i would only consider this "iff" i ever ran into some transmission trouble.

 

I realize that the gears would also have to be changed, also,what kind of cost would a guy be looking at?

spikesputnik Enthusiast

spikesputnik

Posted
Posted
Hey guys, just curious and I probably already know the answer "it's not worth it" but I thought i'd ask anyway. I have a couple of friends that have the new 6 spd's in their 1500's and have become very jealous. Would it be possible to put one in my 2007?

Of course i would only consider this "iff" i ever ran into some transmission trouble.

 

I realize that the gears would also have to be changed, also,what kind of cost would a guy be looking at?

I hear ya. The 4 spd sux. What I'm thinking is to have a couple of my junk yard buddies keep their eyes open.

Just what would the salvage value be on one of them there 6 spds? :idiot:

Nytemare Senior Enthusiast

Nytemare

Posted
Posted

they should bolt right in, there would be no need to change out gears for any reason....the only thing that would be questionable is the electrical connections, and TCM.

 

I think it would be worth it in fuel savings alone, provided you could get one for a fair price

ajswenson Enthusiast

ajswenson

Posted
  • Author
Posted
they should bolt right in, there would be no need to change out gears for any reason....the only thing that would be questionable is the electrical connections, and TCM.

 

I think it would be worth it in fuel savings alone, provided you could get one for a fair price

 

I have 4:10 gears, I thought that most of the 6 spds were coming with like 3:42 or something? This still wouldn't matter?

Matt_ Senior Enthusiast

Matt_

Posted
Posted

i wouldnt spend money on regearing... use that towards a lift and bigger tires. 4.10s with the 6spd are perfect for 35s :idiot:

VMax2007 Senior Enthusiast

VMax2007

Posted
Posted
I hear ya. The 4 spd sux. What I'm thinking is to have a couple of my junk yard buddies keep their eyes open.

Just what would the salvage value be on one of them there 6 spds? :eek:

 

In stock form yes. But have it tuned and pop in a Vette Servo and it's 1000X better. :idiot:

spikesputnik Enthusiast

spikesputnik

Posted
Posted
I hear ya. The 4 spd sux. What I'm thinking is to have a couple of my junk yard buddies keep their eyes open.

Just what would the salvage value be on one of them there 6 spds? :D

 

In stock form yes. But have it tuned and pop in a Vette Servo and it's 1000X better. :eek:

 

 

Oh yes, Justin did a great job on my TCM :idiot: ; the ECM massaging was just a bonus to the tune experience. It's alot more positive and decisive a shifter, but the tranny gaps are still big relative to a 6 spds. Once one drives a six'er you'll have tranny :eek::sigh: forever.

Us 4 spd'ers only other option to get a bit more mechanical advantage pep is to go from 3.42 to 3.73+, but possibly shooting the highway fuel efficiency(more) as I'm already spinning about 2000-2100 rpm @ 80mph(my preferred cruising speed) THUS, my lust for a "wide ratio" tranny.

Nytemare Senior Enthusiast

Nytemare

Posted
Posted
I hear ya. The 4 spd sux. What I'm thinking is to have a couple of my junk yard buddies keep their eyes open.

Just what would the salvage value be on one of them there 6 spds? :freak:

 

In stock form yes. But have it tuned and pop in a Vette Servo and it's 1000X better. :(

 

No matter what you do to it....1000X crap is still crap

 

Now if you are really in the market for something cool go for a 6L80/90E:

Nothing has gearing like this:

First: 4.03

Second: 2.36

Third: 1.53

Fourth: 1.15

Fifth: 0.85

Sixth: 0.67

and factory rated at 439ft-lbs engine torque

 

4l60/65E 4l80E

 

1st-3.059:1 --------- 2.482:1

2nd-1.625:1--------- 1.482:1

3rd-1.000:1 --------- 1.000:1

4th-0.696:1 --------- 0.750:1

ajswenson Enthusiast

ajswenson

Posted
  • Author
Posted
A gear Vendor will split all four gears giving you an 8 speed. Don't know much about em but from what i know that's what they do. About $2500 or so I think.

 

sounds interesting, it wasn't so much the 6 spds that I was interested in, it was having a taller highway gear. with the 4:10's in the back I tend to be running some pretty high RPM's at highway speeds.

ajswenson Enthusiast

ajswenson

Posted
  • Author
Posted

Well, if your truck has the auto 4WD function a gear vendor is out. I called them and they said they didn't make one to work with our transfer case

  • 4 weeks later...
4wd Enthusiast

4wd

Posted
Posted
I hear ya. The 4 spd sux. What I'm thinking is to have a couple of my junk yard buddies keep their eyes open.

Just what would the salvage value be on one of them there 6 spds? :D

 

In stock form yes. But have it tuned and pop in a Vette Servo and it's 1000X better. :dunno:

 

No matter what you do to it....1000X crap is still crap

 

Now if you are really in the market for something cool go for a 6L80/90E:

Nothing has gearing like this:

First: 4.03

Second: 2.36

Third: 1.53

Fourth: 1.15

Fifth: 0.85

Sixth: 0.67

and factory rated at 439ft-lbs engine torque

 

4l60/65E 4l80E

 

1st-3.059:1 --------- 2.482:1

2nd-1.625:1--------- 1.482:1

3rd-1.000:1 --------- 1.000:1

4th-0.696:1 --------- 0.750:1

 

 

So what is the message here?, I can convert from 4l60 to 6 speed NO problem.

My stock is 5.3L, 4WD, 4l60 (M30) & 4.1.

Stevens03 Senior Enthusiast

Stevens03

Posted
Posted

I don't see what would be so hard with it. PCM would need programmed, and a new TCM to support the 6-speed and your set. Not sure about cross memeber or drive shaft, but IT can't be to bad if you have a donor truck. I'd love to see someone do this.

66nova Senior Enthusiast

66nova

Posted
Posted
I don't see what would be so hard with it. PCM would need programmed, and a new TCM to support the 6-speed and your set. Not sure about cross memeber or drive shaft, but IT can't be to bad if you have a donor truck. I'd love to see someone do this.

 

 

+1

 

I don't think it would be that bad at all. I think the 6 speed is longer, so you would need a different drive shaft. The TCM is built in to the tranny, so you are set there.

 

I wonder if you would have to have the BCM reflashed??? I bet Justin would probably know. But I haven't seen Justin or Jenna around for a while.

 

I would love to do this mod and I very well may if my 4L70 ever poops out on me. They have to be becoming more prevalent in the junk yard since they have been in the Denali and Escalades since at least 2007.

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