Automatic trans swap thought

[Rich]

This was a random thought I had while I was doing a tech call to a local gm dealership...

But the cruze has a 6 spd auto in it. Im not familiar with how similar the front of the cruze is to the front of the cobalt. But was wondering how that 6spd auto might fit the cobalt auto's. I really have no desire to do it. But at the same time was curious as the 4t45's gear ratios kind of suck a lot

So off the tops of peoples heads what do you guys think it would take to make the 6spd auto fit a 4t45 car? From what I know the 08 2.4 guys might have it easier as their ecm is a newer ecm and might take to a flash and such easier than the older ecm's. But as far as mounting and such I have no clue obviously as this was a random thought.

[qwikredline]

boatload of cash...not a practical solution for anything...newer ecm easier? totally different wiring architecture makes it a non starter. sorry

[rossshady120]

4 spd > 6 spd

4T40E / 4T45E GENERAL MOTORS FRONT WHEEL DRIVE
Cavalier, Malibu, Cutlass, Alero, Grand Am, Sunfire

Valve bodies are custom calibrated to provide firm, efficient shifts.
Modified pressure regulation system to furnish precise line pressure increase as needed with open throttle conditions.
Redesigned converter clutch apply circuit to yield greater holding capacity under high horsepower use.
New Solenoids installed
Modified pressure control solenoid installed (4T65E)
Additional Clutches Installed
Hi-Energy Friction Material Installed
Modified pump to increase volume and enhance fluid flow throughout the unit.
Heat treated pump driveshaft to prevent spline stripping
Heat treated apply sleeve to prevent breakage
Modified aftermarket front sun gear to prevent the pitting and galling often associated with the OEM part.
Heat treated final drive sun gear to prevent the metal fatigue associated with the OEM part.
New Torrington Bearing set installed to reduce frictional losses and prevent component failure
High strength drive chains utilized to prevent stretch and skipping teeth.
Limited Slip Differential available (optional)
4T40E and 4T45E: $2975

http://www.importperformancetrans.com/gmautofwd.shtml

[USMCFieldMP]

It can more than likely be done... quite possibly need a lot of custom crap for it like axles. Getting the ECU to control it is a whole other story/problem, though.

4 spd > 6 spd

http://www.importperformancetrans.com/gmautofwd.shtml

Cool story, bro. It doesn't prove for one second that the 4spd is better than the 6spd. Your logic fails again.

[Rich]

boatload of cash...not a practical solution for anything...newer ecm easier? totally different wiring architecture makes it a non starter. sorry

Nothing to apologize for this is my random stupid thought of the day. And honestly im sinking my money into my camaro right now anyway.

4 spd > 6 spd
http://www.importperformancetrans.com/gmautofwd.shtml

the 6 spd ratios would help out an auto 4 cylinder dramatically. And IPT has still had 4t45 trans failures. Maybe the zzp 4t45s will be better. But this wasnt about going balls out. Just a random thought I had while helping a mechanic at a chevy dealership. A 6 spd auto stock compared to a 4spd auto stock in this comparison that 6spd should walk all over that 4 spd.
Not only down the track but on the backroads and potentially in the mpg department.


Im sure it would be a headache and not something im actually interested in. But Id be curious about the mechanical end of how it would go together. Electrical is yes obviously another huge speed bump.

[Maven]

Youd need a 6T45 with a proper ECO torque converter housing, and torque converter. Custom axles, custom mounts, custom cooler lines, custom shift cable, and of course youd have to basically turn your Cobalt into a Malibu electrically

[Rich]

Youd need a 6T45 with a proper ECO torque converter housing, and torque converter. Custom axles, custom mounts, custom cooler lines, custom shift cable, and of course youd have to basically turn your Cobalt into a Malibu electrically

Even if I used the cruze 1.8s 6spd? And depending on the ecm and the electrical plugs id figure that if it was close maybe repin the harness and then of course all the custom ♠♠♠♠ lol

[qwikredline]

the generations of cars, even delta lsj to delta lnf to delta le5 and lap are so far apart in some areas, dont even start on delta ion redline 2004 and subsequent 2005-07 redlines...and the delta cruze is like light years apart and a daewoo platform from korea or sumthin...

so it really is forget it. so random thought is random forgotten and swept into corner.

that said, a slick 6 speed tranny is a big pick up imho.

o
wait
most popular economical drag racing trans for racing tin tops? 2 speed powerglide.

whodathunkit?
dot com....

[Maven]

Even if I used the cruze 1.8s 6spd? And depending on the ecm and the electrical plugs id figure that if it was close maybe repin the harness and then of course all the custom ♠♠♠♠ lol

The Cruze doesnt have ANY parts that will bolt on to a Cobalt. The trans wont, nor the converter, axles, mounts, etc, etc....... You cant just repin anything, the 6speed autos have control module built into the transmission,the entire harness and the way the trans and the car work together is different. youd need custom built harness and youd need to swap ECMs and BCMs. And no you cant just run a standalone, or atleast no one has been abletodoit yet......not even the V8 guys with the 6L80 yet as far as I know, and theres a lot of interest in that application, almost none in the 6T30/40

[Domin8]

custom cooler lines

This is probably the easiest part of the while project. Very similar to bending custom brake lines with with the flare being ~1/4

[ThePaul]

it's not a fun project............... well on an lnf car that is

[Rich]

.not even the V8 guys with the 6L80 yet as far as I know, and theres a lot of interest in that application,

Trust me I know on the 6L80... been wanting one for my camaro... probably just going to end up with the 4L80 instead. Especially since the TCI 6 spd is a ton of cash!

But this was just a random question I didnt think it would be anything easy nor was i serious about the swap by any means. lol