Editing TorqueFlite (section)

===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))