Editing TorqueFlite (section)

==Rear-wheel drive transmissions==

===A466===
The original TorqueFlite was designated ''A466'', with a [[cast iron]] case, separate iron converter housing, and no parking pawl.

===A727 (36RH/37RH)===
The A466 was replaced in 1962 with the ''A727'' (later renamed ''36RH'' and ''37RH''), with a one-piece [[aluminum]] case to reduce weight by about {{convert|60|lb|kg|abbr=on}}. This was initially referred to in consumer-oriented publications as the "TorqueFlite 8" to differentiate it from the A904. The A727 incorporated a parking pawl, with the sole exception of the 1962 Chrysler and Dodge 880 version, which had an extension-mounted drum brake. Compared to the early cast-iron transmissions, many and various internal improvements were featured, and it used a {{convert|10.75|in|cm|abbr=on}} or {{convert|11.75|in|cm|abbr=on}} torque converter. The heavier-duty A727 Torqueflites became — and remain — wildly popular for [[drag racing]], [[off roading]], and [[monster truck]] applications because of their controllability, reliability, ease/cheapness of repair, and brute strength.  Note there are unique bellhousing bolt patterns for the small block "A" and big block "B" engine versions of this transmission and for [[AMC and Jeep_transmissions#Chrysler/TorqueCommand|American Motors (AMC) and Jeep]] applications.

* 1962-1978 361, 383, 400 [[Chrysler B engine#B engines|B-Motor V8]]
* 1962-1978 413, 426 Wedge, 440 [[Chrysler B engine#RB engines|RB-V8]]
* 1966-1971 426 "Street" Hemi 
* 1964-1971 426 Race Hemi (super stock, etc.)
* 1962-1966 318 "A" "Poly" V8
* 1968-1973 340 (all)
* 1969-1983 225 (Police, Taxi)
* 1971-1980 360 (4-BBl only)
* 1978-1983 318 (4-bbl Police)
* 1972-1978 AMC "Torque-Command"
* 1984-1989 318 (2-bbl Taxi special order)
* 1980-1991 Jeep (some)

Gear ratios:
{| class=wikitable
!1
!2
!3
!R
|-
|2.45
|1.45
|1.00
|2.20
|}

====A518 (46RH/46RE)====
The ''A518'', later renamed ''46RH'' (hydraulic controlled governor pressure) and ''46RE'' (electronic controlled governor pressure), is an A727 derivative with [[Overdrive (mechanics)|overdrive]], in the A500 ilk.  Starting in 1990, it was used in some trucks and vans. The overdrive fourth gear ratio is 0.69:1.

Gear ratios:
{| class=wikitable
!1
!2
!3
!4
!R
|-
|2.45
|1.45
|1.00
|0.69
|2.35
|}

Applications:
*[[Dodge Ram]] pickup and vans 150/250/350 V8 and diesel engines (DGT)
*[[Dodge Ramcharger]] SUV 1988-1993 5.2L & 5.9L V8
*[[Jeep Grand Cherokee]] 1993 5.2L, 1998 5.9L
*1995 Dodge Dakota 5.2L Magnum V8
*1996 [[Dodge Dakota]] V8
*1998–2003 Dodge Dakota ''R/T''
*1998-2003 [[Dodge Durango]] 5.9L V8 (4WD or 2WD)
*1994-1995 [[Dodge Ram]] 1500/2500/3500 V8
*1996-2001 [[Dodge Ram]] 1500 V8
*1996-2002 [[Dodge Ram]] 2500/3500 V8
*2002-early 2003 [[Dodge Ram]] 1500 5.9L V8
*X-1995 Dodge Ram Van 2500 5.2L Magnum V8

====A618 (47RH/47RE/48RE)====
The ''A618'', later renamed ''47RE'' (electronically controlled governor pressure) is a heavier-duty version of A518, also known as the 46RE (which also has electronically controlled governor pressure, versus the earlier RH version, which was hydraulically controlled). It was used in trucks and vans starting in the mid-1990s. While currently used with some internal changes such as the move from aluminum to steel planetary carriers and an increase in the number of clutch plates when coupled to the 5.9&nbsp;L Cummins Turbo-Diesel and the 8.0&nbsp;L V-10 applications, it is a 727 with overdrive and more robust internal parts. It has an input torque rating of {{convert|450|lbft|Nm|0|abbr=on}}. The ''48RE'' is an electronically governed, ECU-controlled, four-speed heavy-duty overdrive automatic transmission, that is stronger than its predecessor, the 47-series. The 48RE was introduced in 2004 to 3rd gen ram pickups with the 5.9 cummins, or the v10, some 03 and early 04 trucks still were equipped with 47RE units, and then came a 48re which still used a TV cable, and then from 04.5-07 the 48re was fitted with a TTVA motor (transmission throttle valve actuator) which eliminated the need for a mechanical tv cable. 48re units had the highest volume pump out of any of its predecessors, using a 10 lobe design with tighter clearances (.003"-.005") versus the 47REs 11 lobe design for additional holding ability. More volume was on tap to be circulated through the larger cooling circuit. with the higher than ever low end cummins torque, the direct drum was bigger to allow 5 .085" frictions and 5 .084" steels, the forward drum is in fact made bigger (deeper) to make room for the 5th direct friction/steel, the 48s forward clutch frictions switched from a 64 tooth to a 93 tooth inner spline count, 6 pinion, steel planets were introduced with more robust thrust washers backing them, the overdrive housing was slightly enlarged in the parking mechanism areas to allow the bigger parking rod and pawl mechanism. Most importantly the valvebody introduced the ability to have 2nd gear tcc lockup in manual second. A handful of other enhancements, part throttle 3rd gear tcc lockup was a big quality of life enhancement. 

The base design from the original Torqueflite remains essentially unchanged. The addition of a two-speed output shaft (overdrive unit) that is bolted to the back of the three-speed transmission has only two ratios: direct (1:1) and overdrive (.69:1).  While lubrication to the overdrive unit was a challenge early on, this challenge was later overcome with factory improvements or aftermarket valve body kits. The overdrive planetary has six-pinion gears (unlike the five-pinion used with the A518 used with the Cummins turbodiesel), which is often used as an aftermarket replacement for the stock four-pinion planetary used with the lighter duty transmissions. 

Gear ratios:
{| class=wikitable
!1
!2
!3
!4
!R
|-
|2.45
|1.45
|1.00
|0.69
|2.21
|}

Applications:
*Dodge Ram pickups 2500/3500 ISB Diesel and iron V-10 (DGP)
*Dodge Ram SRT-10 (DGP)f
*1994-1995 Dodge Ram 2500/3500 Diesel/V10
*1996-2002 (Also some early production 2003's) [[Dodge Ram]] 2500/3500 Diesel/V10
*1998-2000 [[Aston Martin Virage]] V8 5.3L <ref>{{cite web |url= http://www.automatic-gearbox.co.uk/aston-martin-gearboxes/ |title = Aston Martin Automatic Gearboxes I Aston Martin Automatic Gearbox Faults}}</ref>
*2003-2004 Dodge Ram 2500/3500 ISB Diesel
*2003-2004 Dodge Ram 2500/3500 HO ISB Diesel
*2004-2007 Dodge Ram 2500/3500 600/610 Diesel
*2004-2006 [[Dodge Ram SRT-10]]

{{Clear}}

===A904 (30RH)===
For standard-duty applications in smaller and lighter vehicles with [[Chrysler Slant-6 engine|six-cylinder]] or small V8 engines starting with the 1964-1/2 273, the compact ''A904'' (later ''30RH'') was introduced in 1960. This transmission used a {{convert|10.75|in|cm|abbr=on}} torque converter. A smaller version of this transmission was also used in the [[Dodge Colt|Dodge Colt/Plymouth Champ]] cars made by Mitsubishi in Japan. This smaller transmission used a {{convert|10|in|cm|abbr=on}} torque converter. Note there are unique bellhousing bolt patterns for the Chrysler Slant-Six, small block V8, and AMC versions (both the six and V8s), including the obscure Chevrolet V8 bellhousing pattern when used with the Pontiac Iron Duke, which was the base motor in some 1980-83 AMC and Jeep products (this bellhousing pattern is a rare find since transmission cores are usually sought after by drag racers building a Powerglide or TH200 derivative using THM2004R internals inclusive of a modified torque converter front face and/or torque converter adapter ring allowing the use of the TorqueFlite bolt pattern to a GM flexplate), and a GM 60 Degree V6 bolt pattern when used with the GM 2.8&nbsp;L [[GM 60-Degree V6 engine#LR2|LR2]] of this transmission.

Uses:
*1960-1976 170, 198, 225 [[Chrysler Slant-6 engine|slant-six]]
*1964-1969 273 [[Chrysler LA engine|LA V8]]
*1967-1978 318 LA V8
*1972-1977 [[AMC Hornet]]
*1972-1978 [[AMC Gremlin]], [[AMC Matador]] with six-cylinder engines
*1975-1980 [[AMC Pacer]]
*1978-1983 [[AMC Concord]]
*1979-1983 [[AMC Spirit]]
*1980-1983 [[Jeep CJ]], [[AMC Eagle]] with GM [[Iron Duke engine]]
*1983-1984 Jeep DJ-5M with AMC 2.5&nbsp;L
*1984-1986, 1994-2000 [[Jeep Cherokee (XJ)]] with GM 2.8&nbsp;L [[GM 60-Degree V6 engine#LR2|LR2]] V6, AMC 2.5&nbsp;L I4
*1986 [[Jeep Comanche]] (MJ) with GM 2.8&nbsp;L V6, AMC 2.5&nbsp;L I4
*1994-1995 [[Jeep Wrangler (YJ)]] with four-cylinder engine
*1997-2002 [[Jeep Wrangler (TJ)]] with four-cylinder engine

====A998 (31RH)====
The ''A998'', later renamed ''31RH'' was a medium-duty, narrow or wide-ratio version of the small-frame A904 transmission for use with medium-power V8 engines and the [[Chrysler LA engine|3.9 L V6]] engine. It was equipped with four direct friction plates. This transmission differed from the A904 by having a reinforced case and internals. Narrow ratios are 2.45/1.45/1.00:,1 and wide ratios are 2.74/1.55/1.00:1. 

Uses:

* 1984-1989 318 (2-bbl)
* 1972-1988 [[AMC straight-6 engine|AMC 6-cylinder]] and [[AMC_V8_engine#304|{{convert|304|CID|L|1|abbr=on}} V8]] engines
* 1987-1988 Dodge Dakota

====A999 (32RH)====
The ''A999'' (later renamed ''32RH'') was a heavier-duty, wide-ratio version of the small-frame A904 transmission for use with medium-power V8 engines and the 3.9&nbsp;L V6 engine. It was equipped with five direct friction plates. These automatics had lower first- and second-gear ratios, allowing the lower-powered engines to provide better acceleration without sacrificing highway fuel economy. They were frequently used today in drag racing. 
 
Uses:

* 1975-1980 360 (2-bbl)
* 1984-1989 318 (4-bbl Police)
* 1994-2003 [[Dodge Ram Van]] B150 with Magnum 3.9L V6 engine
* 1994-2003 [[Dodge Dakota]] with Magnum 3.9&nbsp;L V6 engine
* 1987-1995 Jeep Wrangler YJ with 6-cylinder engine.
* 1997-2002 Jeep Wrangler TJ with 6-cylinder engine.
* [[Jeep Wagoneer]]/Grand Wagoneer  with the {{convert|258|CID|L|1|abbr=on}} straight-6

====A500 (40RH/42RH/40RE/42RE/44RE)====
The ''A500'', later renamed ''40RH'' and ''42RH'' (hydraulically controlled governor pressure) and ''40RE'', ''42RE'', ''44RE'' (electronically controlled governor pressure, 1993-up), was an A904 derivative used in trucks and vans. Introduced in the 1988 model year on a limited basis, it was the first light-duty Chrysler four-speed automatic and was placed behind the 3.9&nbsp;L and 5.2&nbsp;L engines for light-duty purposes. Forward direct clutch drum (same as the A998) usually has a four friction disc pack - an A999 forward direct clutch drum with the five friction disc pack does interchange. A bolt-in low/reverse overrun clutch assembly (shared with the A904 derivatives manufactured after 1988) uses a roller clutc,h which is shared with the GM THM200 and THM2004R. Much like the later production A904 with a wide ratio gear, a double wrap low-reverse band is used. An extension housing mounted ([[New Venture Gear|New Process]] built) overdrive unit was bolted to the rear of the case to provide a total of four forward speeds; the extension housing and its internals interchange with the 46-48RH/RE (A518/618) - when overhauling the overdrive unit transmission rebuilders usually would use replacement parts from the A518/618 overdrive section since the A500 internals are light duty e.g. number of friction discs and thick pressure plates. 

The overdrive housing (RWD/2WD) uses an output shaft yoke commonly shared with the A727 and its later derivatives, except for the A618/48RE. Electronic governor pressure was phased in during the middle of the 1993 model year, where it was renamed as the A500SE - Jeep Grand Cherokees equipped with the 4.0L used the A500SE/42RE since the middle of the 1993 model year replacing the AW4. Oil pans used with the A500SE/42RE are similar in design to the one used in the A500, with a clearance area for the shift solenoid. The pan and filter were updated during the 1998 model year with some Dodge applications, which have a deeper oil pan and a redesigned oil filter that is held with two valve body screws (the single oil port filter does interchange with the older A500 and A904 derivatives along with the oil pan). This transmission was replaced by the 42RLE in 2004.

Gear ratios:
{| class=wikitable
!1
!2
!3
!4
!R
|-
|2.74
|1.54
|1.00
|0.69
|2.21
|}

Applications:
*1989-2001 Dodge Ram pickup 150/1500 V6/V8(2WD)
*1989-2003 [[Dodge Ram Van]] B150/B250/B350 V6/V8
*1989-2003 [[Dodge Dakota]]
*1993-2004 [[Jeep Grand Cherokee#First generation (ZJ; 1993)|Jeep Grand Cherokee]] I6
*1996-1998 Jeep Grand Cherokee 5.2 V8
*1999-2003 Jeep Grand Cherokee 3.1 TD
*1998-2000 [[Dodge Durango]] 5.2L V8 (4WD (98-99) or 2WD (99-00))