Transaxles

3-speed Automatic Transaxle

Unknown

1st	: 2.79
2nd	: 1.61
3rd	: 1.00
Rev	: 1.97
Final	: 3.23

Type H ATF (1986/1987)
Dexron III/Mercon ATF (1988-1990)

Found on 4-cylinder models only.

5-speed Manual Transaxle 3

Unknown

1st	: 3.60
2nd	: 2.12
3rd	: 1.39
4th	: 1.02
5th	: 0.77
Rev	: Unknown
Final	: 3.33

Type F or Dexron II ATF (1986/1987)
Dexron III/Mercon ATF (1988)

Found on 4-cylinder MT5 models only.

4-speed Automatic Transaxle with Overdrive

First Letter: T
(More Info)

1st	: 2.771
2nd	: 1.543
3rd	: 1.000
4th	: 0.694
Rev	: 2.263
Final	: 3.37

Type H ATF (1986/1987)
Dexron III/Mercon ATF(1988-1990)

This is a non-electronic controlled transaxle. Usually found on the V6 models.

5-speed Manual Transaxle 4

First Letter: A
(More Info)

1st	: 3.21
2nd	: 2.09
3rd	: 1.38
4th	: 1.02
5th	: 0.74
Rev	: 3.79
Final	: 3.74

Dexron III/Mercon ATF

Found on 3.0L SHO models only.

4-speed Automatic Transaxle w/ Overdrive (Electronically Controlled)
A.K.A.
Automatic Transaxle 4-speed Synchronized

First Letter: T (1991-1992)
First Letter: L (1993+)
(More Info)

1st	: 2.771
2nd	: 1.543
3rd	: 1.000
4th	: 0.694
Rev	: 2.263
Final	: See Chart

Dexron III/Mercon ATF (1991-1998)
Mercon V (1998+)

This is an electronically controlled version of the "AXOD". 1991-1993 models had major reliability problems, but later models were less trouble. This transmission was renamed the "AX4S" in 1994 although it was still referred to as the "AXOD-E" until 1995. This was used on most Vulcans, all 3.2L SHOs (slightly different internals), all 3.8L V6s, and the 1991 2.5L I4. The 3.2L SHO versions has a different final drive ratio than the ones mated to the other motors. There is conflicting information as to when the production of the AX4S was stopped. Current research shows that it may have been phased out in early 2003 models.

The transaxle pan on this model will sometimes read "AXOD Metric" since it's based on the AXOD transaxle. This transaxle has 17 bolts to hold the pan on.

Automatic Transaxle 4-speed Non-Synchronized

First Letter: X (1994-2005)
Only Letter: N (2006)
(More Info)

1st	: 2.771
2nd	: 1.543
3rd	: 1.000
4th	: 0.694
Rev	: 2.263
Final	: See VIN Tag

Dexron III/Mercon ATF (1994-1998)
Mercon V (1998+)

This transaxle was stronger and better than the "AX4S". It was used on all Duratecs and V8 SHOs and most 2000-2006 Vulcans. The V8 SHO version of this transaxle was slightly different internally (mainly different final drive ratio, higher stall torque converter, and more clutch packs) than the non-SHO version. Some 1994-1999 Vulcans got this transaxle although there was no reason why and they were pretty random. This transaxle is also known as the "4F50N".

The "AX4N" has a different pan than the "AX4S" because the two transaxles have different bolt patterns. This transaxle has 19 bolts that hold the pan on.

6-speed Automatic Transaxle

J
(More Info)

1st	: 4.484
2nd	: 2.872
3rd	: 1.842
4th	: 1.414
5th	: 1.000
6th	: 0.742
Rev	: 2.88
Final	: 3.16 (FWD)
	: 2.77 (AWD 2008/2009)
	: 3.39 (AWD 2010)

Mercon V ATF

Designed in a joint venture with General Motors. GM calls it the Hydra-Matic 6T70.