According to the info posted from the guy back in October last year there looks like theres 2 transaxle options, the current SS/SC MU3 (Saab F35) and an MWL (F40) option.

I wonder if the F40 is the same transaxle thats in the G6 GTP and if it swaps over to us SS/SC guys. Edit: The Pontiac F40 is listed as an MU9, so I have no idea what this new MWL tranny is.

I have no idea what this new MWL tranny is.

Maybe the auto option being offered in the HHR?

ooo, new tranny. Just what I need.

Maybe the auto option being offered in the HHR?

That image has it listed as a manual option. I'm sure its a 6 speed, but what exact transaxle is beyond me.

ooo, new tranny. Just what I need.

:lol: Stop breaking shit and you wouldn't have this problem. :p:

That image has it listed as a manual option. I'm sure its a 6 speed, but what exact transaxle is beyond me.

Beats me then.

shit I'll be needing something very soon that can handle tq. this fgp35 just isnt gonna last much longer

shit I'll be needing something very soon that can handle tq. this fgp35 just isnt gonna last much longer

Yeah theres quite a few SS/SC's (or at least original SS/SC transmissions) that are in need of an upgraded tranny.

Isn't the F40 in the current 9-3?

Transmission gear ratio (1st) 3.77
Transmission gear ratio (2nd) 2.04
Transmission gear ratio (3rd) 1.37
Transmission gear ratio (4th) 1.05
Transmission gear ratio (5th) .85
Transmission gear ratio (6th) .71
Transmission gear ratio (reverse) 3.54

3.55 final drive ratio

Isn't the F40 in the current 9-3?

Transmission gear ratio (1st) 3.77
Transmission gear ratio (2nd) 2.04
Transmission gear ratio (3rd) 1.37
Transmission gear ratio (4th) 1.05
Transmission gear ratio (5th) .85
Transmission gear ratio (6th) .71
Transmission gear ratio (reverse) 3.54

3.55 final drive ratio

Thats the one GM lists as the MU9. This one is being listed as an MWL. Not sure what the difference is.

Thats the one GM lists as the MU9. This one is being listed as an MWL. Not sure what the difference is.

Possible upgrades to handle increased power? GM uses the same tranny with the 2.8L Turbo'd V6 9-3 and that has 250hp. Probably will use the same tranny with the 300hp Viggen

Possible upgrades to handle increased power? GM uses the same tranny with the 2.8L Turbo'd V6 9-3 and that has 250hp. Probably will use the same tranny with the 300hp Viggen

I'm thinking either that or different gear ratios. Funny thing is they still list it as an F40 though. iono

would like to know the answer. if possible im going to bolt the f40 onto the lsj

I'm thinking either that or different gear ratios. Funny thing is they still list it as an F40 though. iono

With the turbo engine making peak power at what 5300-5400rpm. They don't need steep gears like they have for the LSJ. I think the standard 6spd ratio's with a 3.55 final drive would be perfect and provide excellent highway fuel economy.

would like to know the answer. if possible im going to bolt the f40 onto the lsj

I'm thinking the same, it would be a great upgrade for the SS/SC guys if this tranny has either an upgraded torque rating or better gear ratios.

does the lnf use the same block as the lsj? different internals of course but I wonder what the flywheel bolt-pattern is like?

does the lnf use the same block as the lsj? different internals of course but I wonder what the flywheel bolt-pattern is like?

Both should have the same crankshafts iirc. The block is slightly different, one being a Gen1 design and the LNF being the reinforced Gen2.

Hmm, to turbo this car or trade up for the LNF...

Hmm, to turbo this car or trade up for the LNF...

:lol: Because you aren't upside down enough on this one...:p:

No orange for the LNF I bet. Although Sport Tint Red = FTW.

No orange for the LNF I bet. Although Sport Tint Red = FTW.

LOL I'd hate you forever. I LOVE Sport Red. I'll admit I even like it better than my beloved Arrival Blue.

Off topic, but what PCM is in the LNF cars? Same that is in the 2.4 SS's, just tuned for boost? 16 or 32 bit?

so are people thinking that we can bolt up the f40 to our lsj. would enjoy the 6 speed.

Yes, but does this trans have LSD? If no LSD is available, aftermarket as well... would be better off getting the Quaife 6spd conversion for our trans. For me, an LSD is a must.

Yes, but does this trans have LSD? If no LSD is available, aftermarket as well... would be better off getting the Quaife 6spd conversion for our trans. For me, an LSD is a must.

:p: What u need an LSD for?

very good ? im looking to pick up a tranny with lsd. i hope that the f40 has an lsd in it.

I'd love an upgraded and stronger tranny personally after breaking two 3rd gears. I'm keeping my eyes on this one.

LOL I'd hate you forever. I LOVE Sport Red. I'll admit I even like it better than my beloved Arrival Blue.

awwwwwwwwwww
::hugs his srtc car::

the max rated trq capacity of the lsj tranny is 258.

if gm is going to do the staged upgrades like they did for the lsj on the lnf. the transmission will have to be beefier to handle it. small turbo = torque

The f40 6-speed is the GTP G6 trans lifted from Saab . Its been around for quite awhile .

Here's a little info (http://media.gm.com/us/powertrain/en/product_services/2008/Whats%20New/Transmissions/2008%20Manual%20Transmission/08_F40_MU9.doc)

Its rated for 295 lbs/ft . Not too much more than the F35 . I dont put too much faith in those #'s though . The getrag trans is only rated for 170 tq and they can handle a ridiculous amount of power . I looked into the F40 before , Ive never seen any mention of it having a LSD in the G6 or the 9-3 . This trans is also used in the Opel Astra OPC ( VXr ) in Europe and is available there with a LSD .

Go to car-part.com and search for a manual trans in 2006 G6 . There several low mile or 0 mile F-40's for under 800 bucks :)

but will it bolt up to the lsj? has anyone tried this yet?

but will it bolt up to the lsj? has anyone tried this yet?

Yes , you missed the logic there . Our trans comes unmodified out of the 9-3 , and in the 9-3 , the optional 6-speed bolts up to the same engine . I dont have any sizes though of the case . Better question would be , will it clear the driverside rail of the Cobalt engine cradle .

Only thing need to worry is clearing the cradle like stated, and probably linkage. I doubt the linkage will be 100% the same exact location.

The f40 6-speed is the GTP G6 trans lifted from Saab . Its been around for quite awhile .

Here's a little info (http://media.gm.com/us/powertrain/en/product_services/2008/Whats%20New/Transmissions/2008%20Manual%20Transmission/08_F40_MU9.doc)

Its rated for 295 lbs/ft . Not too much more than the F35 . I dont put too much faith in those #'s though . The getrag trans is only rated for 170 tq and they can handle a ridiculous amount of power . I looked into the F40 before , Ive never seen any mention of it having a LSD in the G6 or the 9-3 . This trans is also used in the Opel Astra OPC ( VXr ) in Europe and is available there with a LSD .

Go to car-part.com and search for a manual trans in 2006 G6 . There several low mile or 0 mile F-40's for under 800 bucks :)

Remember, that the F-40's weak point is the clutch. Everything else is good for 350-400tq.

FYI. It is also 352mm wide. Time to go out to your car and measure. :D

The f40 6-speed is the GTP G6 trans lifted from Saab . Its been around for quite awhile .

Here's a little info (http://media.gm.com/us/powertrain/en/product_services/2008/Whats%20New/Transmissions/2008%20Manual%20Transmission/08_F40_MU9.doc)

Its rated for 295 lbs/ft . Not too much more than the F35 . I dont put too much faith in those #'s though . The getrag trans is only rated for 170 tq and they can handle a ridiculous amount of power . I looked into the F40 before , Ive never seen any mention of it having a LSD in the G6 or the 9-3 . This trans is also used in the Opel Astra OPC ( VXr ) in Europe and is available there with a LSD .

Go to car-part.com and search for a manual trans in 2006 G6 . There several low mile or 0 mile F-40's for under 800 bucks :)

I'm not sure this is the same F40. Thats the MU9 specs, the one listed for the SS/TC is an MWL.

The Fxx nomenclature is nothing more than a reference to the transaxle's torque rating iirc in Newton*Meters (350Nm-f35, 400Nm-f40, etc).

so what would i do as far as clutch wise. get a clutch for a ss/sc or saab 9-3. essentially there the same as stated above. but is there clutch flywheel gonna be the same. im searchin the junkyards for a f40 to buy one and finally figure out if this will work

Clutch will be the same. Same exact motor.

thats what i figured just trying to make sure. has anyone tried this or would i be the first one to attempt it. and before anyone says anything dont worry bout the mechanical shit. ik what im doing and also my best friend just had a lift installed in his "barn". makes things so much easier

Should be no more difficult than changing out the clutch in our car. Just will be bolting a different tranny in when you go putting stuff back together.

Be nice if we could get pics of the MWL trans to compare.

yea. ill do some more research, but should be alot cheaper then the 6 speed conversion. does the MWL have an lsd or capabilites of having and lsd put in?

Not sure, that would be a big selling point to most though. IIRC no LSD yet. I remember someone saying over in Europe the trans has an LSD as an option though.

eh. i have a family friend that owns a tranny shop. ill have him help me out with the research and then let everyone know.

keep me posted

Thanks for the correction Whitt . I will do some more digging on the MWL option code . Its possibly a new FWD version of the MU9 then , as the LNF will be going into the next gen 9-3 and Astra . I have access to GM Dealer world , so I'll see what I can pull up next week sometime .

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