Identifying A 1987-2008 Jeep Manual Transmission

1987-2002	1987-1989	1989-1999
Name: AX5 Speeds: 5 Case Length: 22.50" Bolt Pattern:	Name: BA10-5 Speeds: 5 Case Length: 24.00" Bolt Pattern:	Name: AX15 Speeds: 5 Case Length: 24.00" Bolt Pattern:
Gear Ratios:	Gear Ratios:	Gear Ratios:
1st: 3.93 2nd: 2.33 3rd: 1.45 4th: 1.00 5th: 0.85 Rev: 4.74	1st: 3.39 2nd: 2.33 3rd: 1.44 4th: 1.00 5th: 0.79 Rev: 3.39	1st: 3.83 2nd: 2.33 3rd: 1.44 4th: 1.00 5th: 0.79 Rev: 4.22
Notes: 1^1/8 inch 10 spline input shaft. 21 spline output. Cast Iron Intermediate plate. AX4 (solid case no intermediate plate) was used up to 10/4/88.	Notes: Two piece clamshell case and five bolts to bellhousing. Used up to 3/03/89. Generally had 21 spline output but 23 spline possible.	Notes: 1^1/8 inch 10 spline input shaft. Aluminum intermediate plate. 23 spline output. Replaced BA10/5 after 3/03/89.
2000-2004	2005-2008	2001-2004
Name: NV3550 Speeds: 5 Case Length: 16.750" Bolt Pattern:	Name: NSG370 Speeds: 6 Case Length: 16.750" Bolt Pattern:	Name: NV1550 Speeds: 5 Case Length: 16.750"
Gear Ratios:	Gear Ratios:	Gear Ratios:
1st: 4.01 2nd: 2.33 3rd: 1.39 4th: 1.00 5th: 0.78 Rev: 3.57	1st: 4.46 2nd: 2.61 3rd: 1.72 4th: 1.25 5th: 1.00 6th: 0.84 Rev: 4.06	1st: 3.85 2nd: 2.25 3rd: 1.48 4th: 1.00 5th: 0.80 Rev: 4.06
Notes: 1^1/8 inch 10 spline input shaft. 23 spline output.	Notes: 1^1/8 inch 10 spline input shaft. Non removable bellhousing. 23 Spline output.	Notes: 1^1/8 inch 10 spline input shaft.

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