Toyota W transmission
Encyclopedia
Toyota Motor Corporation
Toyota Motor Corporation
, , , commonly known simply as Toyota and abbreviated as TMC, is a multinational automaker headquartered in Toyota, Aichi, Japan. In 2010, Toyota Motor Corporation employed 317,734 people worldwide, and was the world's largest automobile manufacturer by production.The company was founded by...

's W family is a family of RWD
RWD
RWD may refer to:* Rear-wheel drive, method of propulsion in an automobile* RWD , Polish aircraft manufacturer* RWD Technologies, software vendor of electronic performance support systems* Rewind Magazine, British based music magazine...

/4WD transmissions built by Aisin. Physically, these transmissions have much in common (like the bell housing
Bell housing
"Bell housing" is a colloquial/slang term for the portion of the transmission that covers the flywheel and the clutch or torque converter of the transmission on vehicles powered by internal combustion engines. This housing is bolted to the engine block and derives its name from the bell-like...

-to-body bolt pattern) with other Aisin-built transmissions, like the Jeep
Jeep
Jeep is an automobile marque of Chrysler . The first Willys Jeeps were produced in 1941 with the first civilian models in 1945, making it the oldest off-road vehicle and sport utility vehicle brand. It inspired a number of other light utility vehicles, such as the Land Rover which is the second...

 AX-5 and the Toyota G-series. The W55, W56, W57, W58, and W59 are externally and internally very similar aside from the gear ratios.

W40

4-speed transmission offered in base model vehicles.

Ratios:
  • First Gear: 3.287:1
  • Second Gear: 2.043:1
  • Third Gear: 1.394:1
  • Fourth Gear: 1.00:1
  • Reverse: -4.091:1


Applications:
  • 1971-1976 Toyota Celica
    Toyota Celica
    The Toyota Celica name has been applied to a series of coupes made by the Japanese company Toyota. The name is ultimately derived from the Latin word coelica meaning "heavenly" or "celestial"....


W42

4-speed transmission.

Ratios:
  • First Gear: 3.579:1
  • Second Gear: 2.081:1
  • Third Gear: 1.397:1
  • Fourth Gear: 1.000:1
  • Reverse: ?


Applications:
  • 1980s toyota pickups and ?

W45

Little information is available for the W45 but service documentation from around 1980 lists it as being the 4-speed variant of the W55. It was used in Toyota RWD cars from around the same year.

The W45 was made all of aluminum alloy.

Ratios:
  • First Gear: 3.566:1
  • Second Gear: 2.056:1
  • Third Gear: 1.384:1
  • Fourth Gear: 1.00:1
  • Reverse: -4.091:1


Applications:
~1980 RWD Toyota Cars

W50

Often called the "steel-case" transmission for its steel
Steel
Steel is an alloy that consists mostly of iron and has a carbon content between 0.2% and 2.1% by weight, depending on the grade. Carbon is the most common alloying material for iron, but various other alloying elements are used, such as manganese, chromium, vanadium, and tungsten...

 shell, in contrast to the later W-series transmissions' aluminium
Aluminium
Aluminium or aluminum is a silvery white member of the boron group of chemical elements. It has the symbol Al, and its atomic number is 13. It is not soluble in water under normal circumstances....

 case. This transmission is mostly associated with early Celicas of the 1970's. It is also shorter from the bellhousing face to the transmission mount than the later aluminium case W-series transmissions, despite using the same mount.

Ratios:
  • First Gear: 3.287:1
  • Second Gear: 2.043:1
  • Third Gear: 1.394:1
  • Fourth Gear: 1.00:1
  • Fifth Gear: 0.853:1
  • Reverse: -4.039:1


Applications:
  • 1976-1981 Toyota Celica
    Toyota Celica
    The Toyota Celica name has been applied to a series of coupes made by the Japanese company Toyota. The name is ultimately derived from the Latin word coelica meaning "heavenly" or "celestial"....


W51

Came in early 80's CE71 Corolla wagon. Similar ratios as W52 except 5th

Composition is alloy.

Ratios:
  • 1st gear 3.625
  • 2nd gear 2.043
  • 3rd gear 1.394
  • 4th gear 1.000
  • 5th gear 0.802
  • rev gear 4.039


Applications:
  • Toyota Corolla E70
    Toyota Corolla E70
    The Corolla E70 was the fourth generation of cars sold by Toyota under the Corolla nameplate.The fourth-generation model released in 1979 in Japan, was boxy and was the last generation to have the entire lineup in rear-wheel-drive. Although most of the fourth generation was replaced by 1984, the...

     CE71/CE72 wagon behind 1839 cc 1C diesel engine (Japan).

W52

Used in Australian delivered 2WD SR5 Extra-Cab Hilux (YN57)

Composition is steel.

Ratios:
  • First Gear: 3.625:1
  • Second Gear: 2.043:1
  • Third Gear: 1.394:1
  • Fourth Gear: 1.00:1
  • Fifth Gear: 0.853:1
  • Reverse: -4.039:1


Applications:
1984-1988 2WD Hilux (AU)

W55

This was the first of the aluminum-shelled W-series transmissions.

The W55 appears to be a base reference point for gear ratios that Toyota used to fine tune later models of the W-series.

Ratios:
  • First Gear: 3.566:1
  • Second Gear: 2.056:1
  • Third Gear: 1.384:1
  • Fourth Gear: 1.00:1
  • Fifth Gear: 0.85:1
  • Reverse: -4.091:1


Applications:
  • 1982-1983 Toyota Carina
    Toyota Carina
    Released in Japan August 1977, the next-generation Carina was available in Germany in December 1977 and in other European countries during 1978. In most markets it was fitted with the same 1,588 cc 2T engine as its predecessor. In the Carina, an output of was claimed...

  • 1981-1985 Toyota Celica
    Toyota Celica
    The Toyota Celica name has been applied to a series of coupes made by the Japanese company Toyota. The name is ultimately derived from the Latin word coelica meaning "heavenly" or "celestial"....

  • 1983 Toyota Corona
    Toyota Corona
    The Toyota Corona is an automobile manufactured by the Japanese automaker Toyota between 1957 and 2002. Traditionally, the competitor from Nissan was the Nissan Bluebird. The word Corona is Latin for "crown"...

  • 1986 Toyota Soarer
    Toyota Soarer
    The Soarer made its first appearance at the 1980 Osaka International Motor Show with the name "EX-8", and the Z10 series Toyota Soarer was produced from February 1981 to December 1985, with 2.0L, 2.8L or 3.0L DOHC I-6 variants. The first generation Soarer debuted with a rear-wheel drive...

  • 1986 Toyota Crown
    Toyota Crown
    The Toyota Crown is a line of full-size luxury sedans by Toyota. The range was primarily available in Japan and some other Asian countries, originally designed to serve as a taxi...

  • 1983 Toyota Chaser
    Toyota Chaser
    The Toyota Chaser is a mid-size car produced by the Toyota Motor Company, Japan. Most were 4-door sedans, with the 2-door coupe discontinued after the first generation...

  • 1984-1988 Toyota Pickup 2WD with 22RE(EFI) engine
  • 2002-2005 Lexus IS300 (US Market only)

W56

A common truck transmission that came in 2-wheel and 4-wheel
Four Wheel Drive
The Four Wheel Drive Auto Company, more often known as Four Wheel Drive or just FWD, was founded in 1909 in Clintonville, Wisconsin, as the Badger Four-Wheel Drive Auto Company by Otto Zachow and William Besserdich.-History:...

 drive varieties.

Its ratios differ in comparison to the base W55 in the 1st and 2nd gears only; this is to allow a slightly heavier vehicle (truck) to get up to speed slightly quicker than if geared like a car.

This was most likely accomplished by taking the W55 base gears and changing the 1st and 2nd gear sets, as the rest of the transmission remains unchanged.

Ratios:
  • First Gear: 3.954:1
  • Second Gear: 2.141:1
  • Third Gear: 1.384:1
  • Fourth Gear: 1.00:1
  • Fifth Gear: 0.85:1


Applications:
  • Toyota Hilux
    Toyota Hilux
    The Toyota Hilux is a series of compact pickup trucks produced and marketed by the Toyota Motor Corporation. Most countries used the Hilux name for the entire life of the series but in North America, the Hilux name was retired in 1976 in favor of Truck, Pickup Truck, or Compact Truck...

  • Toyota 4Runner
    Toyota 4Runner
    The Toyota 4Runner is a mid-size SUV manufactured by Toyota and sold throughout the world from 1984 to the present. In Japan it was known as the Toyota Hilux Surf...

  • Toyota T100
    Toyota T100
    The Toyota T100 was a full-sized pickup truck introduced by Toyota in late 1992 as a 1993 calendar year vehicle....


W57

The W57 is sometimes designated as a "close-ratio transmission
Close-ratio transmission
A close-ratio transmission is a transmission in which there is little difference between the gear ratios of the gears. Consequently, note that the word close implies "near", not "shut." The gear ratio numbers are in a smaller numeric range, hence closer together.In the context of close-ratio...

"; however in its stock form it does not meet all the criteria for a Close-ratio box.

The ratio shift was accomplished by taking the W55 base ratios and changing the input shaft to intermediate shaft ratio by 7.9%, thus shifting 1,2,3 ratios higher by that amount (4th is direct 1:1).

Unlike in the W58 the 5th/overdrive gear set was changed to create a smaller rpm drop between 4th & 5th gears so as to remain close to the overdrive ratio seen in the other boxes.

The rest of the transmission remains unchanged.

Ratios:
  • First Gear: 3.285:1
  • Second Gear: 1.894:1
  • Third Gear: 1.275:1
  • Fourth Gear: 1.00:1
  • Fifth Gear: 0.861:1
  • Reverse: -3.768:1


Applications:
  • 1983-1986 Toyota Supra MK 2 in certain non-US markets.
  • 1986 Toyota Crown
    Toyota Crown
    The Toyota Crown is a line of full-size luxury sedans by Toyota. The range was primarily available in Japan and some other Asian countries, originally designed to serve as a taxi...

  • 1986 Toyota Cressida
    Toyota Cressida
    The Toyota Cressida was a mid-size sedan marketed by Toyota from December 1976 to February 1993 through four generations. It was the flagship sedan of Toyota in the United States. The same chassis with slightly different bodies was available in other countries as the Toyota Mark II, Toyota Chaser...

  • 1982-1985 Toyota Celica (21R)

W58

It differs from the W57 in its fifth-gear ratio. This transmission is popular as a replacement for weak stock transmissions in other vehicles. It came in two varieties: the original found in the 1982-1989 non-turbo Supras, Celicas and Cressidas of the early 1980s; and the later version found in Mk3, Mk 4 Supras and Lexus
Lexus
is the luxury vehicle division of Japanese automaker Toyota Motor Corporation. First introduced in 1989 in the United States, Lexus is now sold globally and has become Japan's largest-selling make of premium cars. The Lexus marque is marketed in over 70 countries and territories worldwide, and has...

 SC 300s.

Toyota lists a change from an alloy sandwich plate to a steel sandwich plate around 1989.
The steel sandwich plate has some minor internal differences, and it is believed to be slightly stronger (some wider bearings, some wider gears, slightly different gear selection mechanism, etc.).
In theory the all-alloy version of the W58 should be exactly the same strength as any other all-alloy W-Series transmission.
The steel plate version is considered much harder to find and worth approximately three to five times as much as an all alloy version.

The ratios and bolt patterns remain the same regardless of the sandwich plate used.

The W58 & W57 share the highest gearing and closest ratios (1st, 2nd, 3rd, and 4th (direct)) of the stock W-Series transmissions.

The ratio shift was accomplished by taking the W55 base ratios and changing the input shaft to intermediate shaft ratio by 7.9%, thus shifting 1, 2, 3 ratios higher by that amount. This also shifted the overdrive 5th gear higher by the same amount creating a wider and taller overdrive ratio.

The W58 is sometimes designated as a "close-ratio transmission
Close-ratio transmission
A close-ratio transmission is a transmission in which there is little difference between the gear ratios of the gears. Consequently, note that the word close implies "near", not "shut." The gear ratio numbers are in a smaller numeric range, hence closer together.In the context of close-ratio...

"; however, in its stock form it does not meet all the criteria for a close-ratio box.

Toyota engineers have shown favor to the W58 over the rest of the 'W' series by including it in so many models and even building a stronger version for higher powered applications.

Ratios:
  • First Gear: 3.285:1
  • Second Gear: 1.894:1
  • Third Gear: 1.275:1
  • Fourth Gear: 1.00:1
  • Fifth Gear: 0.783:1
  • Reverse: -3.768:1


Applications:
  • 1982-1986 Toyota MK 2 Celica Supra
  • 1986-1992 Toyota MK 3 non-turbo Supra
  • 1993-1998 Toyota MK 4 non-turbo Supra
  • 1986 Toyota Cressida
    Toyota Cressida
    The Toyota Cressida was a mid-size sedan marketed by Toyota from December 1976 to February 1993 through four generations. It was the flagship sedan of Toyota in the United States. The same chassis with slightly different bodies was available in other countries as the Toyota Mark II, Toyota Chaser...

  • 1986 Toyota Soarer
    Toyota Soarer
    The Soarer made its first appearance at the 1980 Osaka International Motor Show with the name "EX-8", and the Z10 series Toyota Soarer was produced from February 1981 to December 1985, with 2.0L, 2.8L or 3.0L DOHC I-6 variants. The first generation Soarer debuted with a rear-wheel drive...

  • 1982-1992 Lotus Excel
    Lotus Excel
    The Type 89 Lotus Excel, built from 1982 to 1992, is a front-engined, rear-wheel drive sports car designed and built by Lotus. It was based on the design of the earlier Lotus Eclat, which itself was based on the earlier Lotus Elite II....

  • 1992-1997 Lexus SC300
  • 1998-2005 Lexus IS300 5 speed

W59

A common truck transmission, this was the successor to the W56. Like the W56, it came in both 2-wheel and 4-wheel drive versions.

This model appears to have a combination of ratios used in older models of the W-series.
  • 1st and 2nd are low ratios like in the W56 for use to get a heavy vehicle moving.
  • 3rd ratio is the same as in the W57/W58 for a lower rpm drop between 3rd & 4th useful in high-speed acceleration.
  • 4th is direct 1:1 as per design in these boxes.
  • 5th seems to be the base W55 overdrive ratio.


Ratios:
  • First Gear: 3.954:1
  • Second Gear: 2.141:1
  • Third Gear: 1.275:1
  • Fourth Gear: 1.00:1
  • Fifth Gear: 0.85:1


Applications:
  • Toyota Tacoma
    Toyota Tacoma
    The Toyota Tacoma is a pickup truck produced and manufactured by the Toyota Motor Corporation since 1995. The Tacoma was a compact pickup until a model redesign in 2005 when it was reclassified to a mid-size...


External links

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