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Discussion Starter #1 (Edited)
GM F35
Specifications
Type: transverse front wheel drive, five speed manual transaxle.

Engine Range: 2.0L


Max Gearbox Torque:
258 lb.-ft.


Weight:
99 lbs.

Applications: Chevrolet Cobalt SS, Chevrolet HHR SS



The F35 is a Saab-designed five-speed manual transaxle built in Saab’s Gothenburg, Sweden, powertrain plant. This extensively tested manual transmission was originally introduced in the 1984 Saab 9000, and today it is used in the Saab 9-3 and 9-5, Chevrolet Cobalt SS and on various Opel applications.

The F35 features a two-axis conventional transverse layout, fully synchronized gears, and compact packaging. It features higher torque carrying capacity than many other manual transaxles currently in use in North American small cars.

Different versions of the transaxle are available, depending upon application. Both cable and rod shift mechanisms are available, as well as application-specific clutch housings.

Design features include triple-cone synchronizers on 1st and 2nd gears, and single-cone synchronizers for 3rd, 4th, 5th and reverse gears.

A limited-slip differential is available for high-output applications. This torque-sensing differential is an all-mechanical geared unit that uses no clutch packs or preloading to transfer torque from one axle to the other, and torque transfer occurs automatically when one wheel loses traction. Torque transfer also occurs gradually, without steps.


Source: GMinsidenews.com
 

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So what would I need to do to take the threshhold beyond 258 lbs of torque? Get the lsd? and if so where can I get one?
 

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i have the trans with the LSD whats the stats on that?
 

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naw theyre plenty of people running over 258 on the stock tranny, clutch and everything.

do you have lsd?
-----Added 7 Sep 2008 at 03:55:27-----
best thing to do is get some motor and tranny mounts and even a tq dampner
 

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best thing to do is get some motor and tranny mounts and even a tq dampner
 

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if i am upgrading my power band upwards of around 320hp does that mean i am going to have to upgrade the gearbox too?!
Do you have the LSD Tranny ?
 

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i have an 07 cobalt ss and my clutch wont hold for nothin... it jus acts like it gives and there is no pedal or gears after second gear if i spin tires... and its a brand new stock clutch in.. what would the best way to go be?
 

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Important:

MOST mechanics and even dealers, think Dexron III goes in this transmission. That IS NOT TRUE. The fluid for the F35 (MU3) is Gm part # 21018899. It is a synthetic gear oil, DO NOT RUN DEXRON in this transmission!!! Dexron III is used for the other 5 speed transmissions in the cobalts.

I post this because it was a ***** being persistent on my mechanic, so i hope you dont have to
 

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naw theyre plenty of people running over 258 on the stock tranny, clutch and everything.

do you have lsd?
-----Added 7 Sep 2008 at 03:55:27-----
best thing to do is get some motor and tranny mounts and even a tq dampner
Does anybody know what the 5 speed 2006 ss/sc transmission hold for horsepower max?
 

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SS/TC tranny?

Anyone have an idea on how much horsepower and torque the 09 turbo models support? I have a limited slip differential. Was planning on putting some bolt-ons on it and getting a stock turbo modded with a bigger impeller for about 400hp and tq outta my 2.0l. Just don't want to if I'm going to have to have my tranny case split. Sorry for the trouble, I just want to blow about EVERY mustang away. Saleens and all...
 

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Anyone have an idea on how much horsepower and torque the 09 turbo models support? I have a limited slip differential. Was planning on putting some bolt-ons on it and getting a stock turbo modded with a bigger impeller for about 400hp and tq outta my 2.0l. Just don't want to if I'm going to have to have my tranny case split. Sorry for the trouble, I just want to blow about EVERY mustang away. Saleens and all...
You should be fine with the stock trans @ 400HP. I know a guy that is putting down about that much with the TVS supercharger on his car. He dynoed 348WHP or about 400 HP @ the crank. After his tranny blew twice with stronger axles, he went back to the stock axles and has only replaced axles since. He does race a lot.

Your TC Balt could run mid to low 12's on the stock turbo with bolt ons and a tune.

Good luck!
 

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i have an 07 cobalt ss and my clutch wont hold for nothin... it jus acts like it gives and there is no pedal or gears after second gear if i spin tires... and its a brand new stock clutch in.. what would the best way to go be?


i have the same problem in my 05 ss if i brake the tires loose during take off it wont let me shift passed second and i have to come nearly to a complete stop before i can get it to catch in any gear again.....is this some type of saftey feature and can i disable it some how?
 

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i want to put a tvs on mine id like to run 300-330 hp....i would not be racein alot just going to the track one to 2 times a year...so with the right mods i should be ok to run 300-330 07 ss sc. with out any problems. is what ur saying then ?
 

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that sounds like alot of let down and engine problems that kit ur talking about..thats just my guess lol.

thanks for the reply camopaint
 
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