Advance Adapters AX15 - Manual (Page 50)

VEHICLE DODGE DODGE ENGINE
MODEL/YEAR TYPE PART NUMBER CODE (Liters)
NV3550 4WD TRANSMISSIONS
4X4 2000 TJ 52104388 AA 4.0L
4X4 2001-02 TJ 52104388 AC 4.0L
4X4 2001-02 XJ 52104385 AB 4.0L
4X4 2003-04 TJ 52104678 AA 4.0L 50
The NV3550 transmission is an ideal transmission for the avid four
wheeler that demands reliability, good strength, and wants a simple
installation. The NV3550 was designed for the 2000 to 2004 Jeep TJs
when coupled up the 4.0L in-line 6 cylinder engine.
This transmission was introduced as the NV3550 in 2000; however, this transmission design was originally used earlier in both
the GM and Dodge pickups as the NV3500 transmission. The NV3500 was originally coupled to both the GM 4.3 V6 & V8 engines
in GM vehicles and to the Dodge V8 in the Dodge vehicles. This early transmission was designed to handled both the torque
and horsepower of these engines. The biggest obstacles for the NV3500 was that the bellhousing and transmission were
integral (one cast piece). The NV3550 is essentially the same transmission as the NV3550, with the exception that now the
transmission case and the bellhousing are separate pieces. This new design opened up the door for many transmission
upgrades.
The NV3550 uses an oblong bolt pattern that retains the bellhousing with 9 metric bolts. The alignment of this transmission
to the bellhousing is accomplished by the use of two dowel pins. The NV3550 has a case aluminum pocket that protrudes from
the bellhousing mounting surface, housing one of the shift rods. The bellhousing adapter we manufacture must provide the
necessary clearance for this shift rod. The transmission has a 7.50” input shaft stickout from the face of the transmission. The
clutch spline is 1-1/8” 10 spline with a .750” pilot tip, and the release bearing snout is 1.43” in diameter. The output side of this
transmission offers a circular-6 bolt pattern and a 23 spline output shaft having a flush stickout with the rear of the transmission.
We have seen three styles of shifter handles on this transmission which changed between the yeras and models of vehicles
this transmission was used in. Shifter
Part No. 716099 fits the 2003 & newer models, Part No. 716099A fits the earlier
years, and Part No. 716099C fits the Jeep Liberty’s transmission. An additional option would be a custom short throw shifter
offered from B&M. Although we do not stock this item, we can order it upon request (B&M P/N 45059, estimated cost of $210.00).
The transmission case measures 16.75” long, which allows this transmission to fit into many applications. We sell this
transmission as a complete kit or separately. The vehicle applications that we currently offer fit Jeeps and early Ford Broncos.
The NV3550 transmission can be purchased under Part No. 26-3550R . This NV3550 uses a special gear oil only available
from your Chrysler dealer under P/N 4874464. The backup light switch on this transmission has been changed several times.
We have found that a new switch and pigtail, Mopar P/N 05013336AA, is the best way of connecting to this transmission.