Hey guys I am looking into getting a 6l80E for my LT1 car that I have. Has anyone seen the price on these New GM tranny's. I have researched them a little and They seem to take a bit of abuse and 6 gears is always better than 4.

 

any info on that would be GREAT more gears is always better

thanks steven gsx@hotmail.com 1971 buick gsx stage 1 10.98
1995 z 12.80 1.8 ft

 

 

you have got to be kidding man? how many more extra pounds is that thing?

Get a 4l60 built right and it will last. A buddy of mine has made over 100 passes on a 150shot and over 20 passes with a 250 on his ls1.

 

Lots of f bodies came stock with 6 gears...

 

6L80E PART# 12491349 OPTION CODE MYC ~ 212 LB. WET

1stGear Ratio:4.027 2ndGear Ratio:2.364 3rd Gear Ratio:1.532
4th Gear Ratio:1.152 5thGear Ratio: 0.852 6thGear Ratio:0.667

Reverse
3.064

The Hydra-matic 6-Speed RWD is a fully automatic, six-speed, rear-wheel drive, electronic-controlled transmission. It consists primarily of a four-element torque converter, an integral fluid pump and converter housing, a single and double planetary gear set, friction and mechanical clutch assemblies, and a hydraulic pressurization and control system.

The transmission is equipped with DSC(Driver Shift Control) which is a "manual" mode, and utilizes rocker switches on the steering the driver may select upshifts or downshifts An upshift is requested by pushing either + button. A downshift is requested by pulling either + button rearward toward the driver.

THE 6L80E WILL BE THE SAME SIZE AS A 4L60E.

IT WILL UTILIZE THE SAME DRIVE SHAFT (C6 USE'S 30 SPLINE TAHOE USE'S 27 SPLINE).

AND IT HAS THE SAME MOUNTING POINT AS A 4L60E

IT HAS A 30 SPLINE CONVERTER (SAME AS 4L60E)

 

That's pretty interesting. If this trans would even be possible in our cars, I'll be pissed that I just spent $2k on a built 4L60E. Combine this 6-speed with the new paddle-shifting kit, and I would be a happy camper.

One question, though, how would the computer control the trans, and how would you calibrate the speed?

Also, does anyone know the weight of the 4L60E?

 

does anybody know if teh intallation is pretty straight forward? or is there alot of modifications? i just wnat to knwo this is interesting.

 

You Have To Use A Ls-2 Or Ls7 Cpu On The Lsx Eng's And A Ls2 A6 Or Custom Wiring Harness

On A Lt1,tbi,tpi,ex.... You Need To Use A M6 Cpu And A Stand Alone Cpu For The Transmission

On A Carburetor You Need The Stand-alone Cpu For The Transmission

4l60e = 162 Wet

You Need To Move The Torque Arm To The Transmission Crossmember
You Will Need The Shifter, Shifter Cable, Dipstick, Torque Converter
(on A Pre Lsx Eng You Will Need A Custom Converter)

 

I'll have to keep this in mind if/when my new motor blows this trans. I'm sure a couple people will do it by then. That would be a great project.

 

As a Benz tech I drive vehicles every day with a 7 speed auto and I can tell you it is quite amazing how the engine stays in the power band. Also, it is the same size as their old 5 speed auto.

 

the guys at thirdgen.org have discussed it, very little though

http://www.thirdgen.org/techbb2/show...ighlight=6l80e

 

Right...but I seem to recall something different in the torque converter area.

I would think an A4 ECM could be re-flashed to work since the stand alone unit will control the tranny, but I guess that subject goes in the Computer Diagnostics & Programming section.

.
Something doesn't sound right.
Isn't there a code?
4 = 4 foward gears
L = longtudical mount as opposed to transverse ex. {4T60E)
60 = rated torque capacity code
E = electronic controled

If that 6L80E is the correct designation for the unit, I don't see how it's going to be the same size or weight the same as a 4L60E.
The 4L80E is a larger and much heavier unit than the 4L60E.
What am I missing?

 

To make the 6L80E work you would need to have the LT1(or other engine) pcm/ecm reprogrammed so the auto trans codes wouldn't be thrown, maybe use an aftermarket lock-up kit, use a 6L80E shifter, use a aftermarket module to run the 6L80E if such a thing exists, doubt a LS7 cpu would work. Weight...how much more does it weigh? The biggest problem i see is would it physically work or would it be too large.

 

6l80e Part# 12491349 Option Code Myc ~ 212 Lb. Wet