The NV3550 transmission is a 5-speed manual gearbox commonly used in the 2000-2004 Jeep Wrangler TJ and 2000-2001 Jeep Cherokee XJ.
What Transmission Do I Have?
NV3550 Transmission Overview
Designed to replace the AX 15 transmission, the NV3550 transmission (new venture gear) 5-speed manual transmission is a top shifting gearbox with a Chrysler Corp. 6-bolt mount for a driver’s side drop transfer case. This fully synchronized (except reverse) manual transmission has helically cut gears, direct drive fourth gear, an overdrive fifth gear, a 10 spline input shaft and a 23 spline output shaft which is compatible with a number of transfer cases, including the NP231 and NP241OR.
OE NV3550 5-speed Manual Transmission Applications
2000 – 2004 Jeep Wrangler TJ
2000 – 2001 Jeep Cherokee XJ
Compatible with most Jeep/AMC I6 & V8 engines (with a conversion kit)
Jeep NV3550 Technical Specs
Length w/o bell housing: 16.7 inches
Weight: 97 lbs
Case material: Cast aluminum
Torque capacity: 300 lb-ft
Input shaft: 10 spline
Output shaft: 23 spline
NV3550 Gear Ratios
1st = 4.01
2nd = 2.33
3rd = 1.39
4th = 1.00
5th = 0.78
R = 3.57
What Transmission Do I Have?
Conclusion: NV3550 Transmission
The smooth shifting NV3550 transmission was a modern take on the old Aisin AX15 transmission, and provided Jeep customers with a modern transmission for the new millennium. The right NV3550 adapter plate, it can be modified to work with a number of engines, including GM small block V8’s, small block V6’s, and ford 351 Windsor V8’s.
