The F35 is a Saab

Saab

Saab AB is a Swedish aerospace and defence company, founded in 1937. From 1947 to 1990 it was the parent company of automobile manufacturer Saab Automobile, and between 1968 and 1995 the company was in a merger with commercial vehicle manufacturer Scania, known as Saab-Scania.-History:"Svenska...

-designed five-speed manual transaxle

Transaxle

In the automotive field, a transaxle is a major mechanical component that combines the functionality of the transmission, the differential, and associated components of the driven axle into one integrated assembly....

 built in Saab’s Gothenburg, Sweden, powertrain plant. This extensively tested manual transmission

Transmission

Transmission is the act of passing something on in another place.Specifically, it may refer to:* Transmission , a gear system transmitting mechanical power, as in a car...

 was originally introduced in the 1984 Saab 9000

Saab 9000

The Saab 9000 is an automobile that was produced by the Swedish company Saab from 1984 to 1997. The 9000 was replaced by the 9-5 in the late 1997....

, and today it is used in the Saab 9-3

Saab 9-3

The first generation 9-3, a substantially improved 'new-generation' Saab 900 was launched in 1998 for the 1999 model year. Saab claimed that 1,100 changes were made, including a revised suspension in an attempt to tighten up the handling characteristics of its predecessor, the Saab 900...

 and 9-5

Saab 9-5

The Saab 9-5 is an executive car produced by the Swedish automobile maker Saab. The first generation was introduced in 1997 as the replacement to the Saab 9000 for the 1998 model year. At the time, the car represented a great leap forward for Saab...

, Chevrolet Cobalt SS

Chevrolet Cobalt SS

The Cobalt SS is a line of three sport compact versions of the Chevrolet Cobalt built on the General Motors Delta platform at Lordstown Assembly in Ohio, United States...

, and various GM

GM

- Business and industry :* General manager* General merchandise* General Mills* General Motors, an automobile manufacturing company* Gold Master, an original recording from which copies may be made* Gross margin, profit as a percentage of sales price...

/Opel

Opel

Adam Opel AG, generally shortened to Opel, is a German automobile company founded by Adam Opel in 1862. Opel has been building automobiles since 1899, and became an Aktiengesellschaft in 1929...

 transverse engine

Transverse engine

A transverse engine is an engine mounted in a vehicle so that the engine's crankshaft axis is perpendicular to the long axis of the vehicle. Many modern front wheel drive vehicles use this engine mounting configuration...

 front-wheel drive applications.

Design

The F35 features a two-axis conventional transverse layout, with fully synchronized gear

Gear

A gear is a rotating machine part having cut teeth, or cogs, which mesh with another toothed part in order to transmit torque. Two or more gears working in tandem are called a transmission and can produce a mechanical advantage through a gear ratio and thus may be considered a simple machine....

s, and compact packaging. It features a higher torque carrying capacity than most manual transaxles currently in use by competing North American small cars.

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

Specifications

It weighs approximately 99 lb/45 kg and uses 2 quarts/1,9 l

Litre

pic|200px|right|thumb|One litre is equivalent to this cubeEach side is 10 cm1 litre water = 1 kilogram water The litre is a metric system unit of volume equal to 1 cubic decimetre , to 1,000 cubic centimetres , and to 1/1,000 cubic metre...

 of GM 88862472 gear oil

Gear oil

Gear oil is a motor oil made specifically for transmissions, transfer cases, and differentials in automobiles, trucks, and other machinery. It is of a higher viscosity to better protect the gears and usually is associated with a strong sulfur smell. The high viscosity ensures transfer of...

. This gear oil is identified in GM documentation as a synthetic 75W-85 GL-4, Castrol

Castrol

Castrol is a brand of industrial and automotive lubricants which is applied to a large range of oils, greases and similar products for most lubrication applications...

 Burmah (BOT 0063) manual transmission fluid, and is validated as "fill-for-life". No maintenance is required for normal operation. The gearbox is rated for 260 ft-lb (353 Nm

Newton metre

A newton metre is a unit of torque in the SI system. The symbolic form is N m or N·m, and sometimes hyphenated newton-metre...

) of engine torque.

The GM transmissions are usually numerically designated in newton metres that means F35 is rated at 350 Nm, the weaker rod shifted SAAB version of the F35, the F25, at 250 Nm, F40 at 400 Nm, M32 at 320 Nm, and so on.

Differential

A limited-slip differential is available for high-output applications. GM has sourced Quaife

Quaife

R.T. Quaife Engineering, Ltd. is a British manufacturer of automotive drivetrain products. It designs and manufactures replacement gearboxes and gear sets, some of which are for four-wheel drive systems....

's automatic torque biasing (ATB) torque-sensing (Torsen-style) differential, which is an all-mechanical geared unit that uses no clutch packs or preloading to transfer torque from one axle to the other. The torque transfer occurs automatically and gradually when one wheel loses traction. This type of differential can severely reduce the effects of torque-steer.

Versions

Different versions of the transaxle are available depending upon the application. Both cable and rod shift mechanisms are available, as well as application-specific clutch housings. The MU3 and MC2 are differentiated by ratios, with the MC2 available with a lower top-gear ratio.

MC2 gear ratios:

Final Drive	1	2	3	4	5	R
3.82	3.38	1.76	1.18	0.89	0.70	3.17

MU3 gear ratios:

Final Drive	1	2	3	4	5	R
4.05	3.38	1.76	1.18	0.89	0.70	3.17

Applications

• 1985-1998 Saab 9000 (F25)
• 2004-2007 Saturn ION Red Line
  Saturn ION
  The Saturn Ion was a compact car sold by the Saturn marque of American automaker General Motors between the 2003 and 2007 model years. It used the GM Delta platform. The Ion replaced the Saturn S-Series in 2003,...
  
   (MU3)
• 2005-2007 Chevrolet Cobalt SS Supercharged (MU3)
• 2008-2010 Chevrolet Cobalt SS Turbocharged (MC2)
• 2008-2010 Chevrolet HHR SS Turbocharged
  Chevrolet HHR
  The Chevrolet HHR was a retro-styled station wagon launched by the Chevrolet division of American automaker General Motors at the 2005 Los Angeles Auto Show as a 2006 model — and designed by Bryan Nesbitt. Smaller than the Equinox, the HHR shared the GM Delta platform with the Chevrolet...
  
   (MU3)
• 1994-1998 Saab 900
  Saab 900
  The Saab 900 was a car produced by Saab Automobile from 1978 until 1998 in two generations. The first generation from 1978 to 1993 is known as the "classic"; the generation from 1994 to 1998 is known as the "new generation" ....
  
  (F25)
• 1998-2003 Saab 9-3 (F25, Viggen with F35 differential)
• 1998-2010 Saab 9-5 (F25, with F35 differential)