Advance Adapters AX15 - Manual (Page 51)

P/N 712591
51
NV3550 to JEEP
CJ5 & CJ7 APPLICATIONS:
CJ5 JEEPS: CJ5 JEEPS: CJ5 JEEPS: CJ5 JEEPS: CJ5 JEEPS:
Although this is a fairly long transmission for fitting into these short wheelbase vehicles, it can be
accomplished when used with a GM V6 engine swap. The GM V6 is short enough to be set
further forward in the frame rails and then coupled to the NV3550. The overall length of the
5 speed with the bellhousing and the transfer case adapter is 24.875” long. This ideal
engine and transmission combination provides the needed highway gearing for
these Jeeps and still provides a usable low gear for off-roading. The front
driveshaft has good clearance on the transmission; however, count on
lengthening and shortening the driveshafts to fit the new drivetrain length.
Other modifications would include transmission crossmember support,
and floorboard modifications for the shift handle.
NOTE: Due to flywheel
limitations on the later model blocks and the oil pan configurations, the GM
4.3 V6 should be a 1996 & earlier model.
We do not offer this as a complete kit. The following parts will be required for this CJ5 installation.
P/N 26-3550R -NV3550 transmission
P/N 712591 - Bellhousing to mate the NV3550 to the GM 4.3 V6 (153 tooth flywheel limitation)
P/N 50-8602 - Transfer case adapter NV3550 to Jeep Dana 20 transfer case
CJ7 JEEPS CJ7 JEEPS CJ7 JEEPS CJ7 JEEPS CJ7 JEEPS
The NV3550 transmission works well as a replacement transmission for the CJ7s or as a great transmission when performing
an engine swap. The NV3550 is approximately 2-1/4” longer than the stock Jeep T5, T4, and SR4 transmissions, and 4-3/4”
longer than the T176 transmission. When retrofitting the stock transmission with the NV3550, driveline modifications are to be
expected.
The NV3550 also works well when performing an engine swap. We currently manufacture bellhousing adapter plates or a full
conversion bellhousing to couple the NV3550 to the GM V6 & V8 blocks, the Ford V8 blocks, and the Jeep blocks. Depending on
the choice of engine along with the placement in the frame rails, driveshaft modifications may not be necessary.
Even though the NV3550 has the correct output shaft spline count to fit to the Dana 300 transfer case and the correct indexing, the
rear bolt pattern is slightly rotated from that of the Dana 300. The transmissions we sell are modified on the tailhousing to accept
the stock Dana 300 bolt pattern rotation.
When installing the Dana 300 to the
NV3550, you may be required to modify your
transfer case shifter. The pivot pin on the
Dana 300 transfer case must be installed
so that the cotter pin is closest to the new
transmission. You may also be required to
grind a bit of the transmission webbing to
obtain clearance for the pivot pin. The shifter
handle should fit without any modifications.
The NV3550 transmission uses a 4 bolt rubber crossmember support. Our kits
supply a crossmember adapter plate to change the four bolt crossmember
transmission pad on the NV3550 to a two bolt pattern mount that was used on
your stock Jeep. The location of the rubber crossmember mount may not line
up with the stock skid pan slots; therefore, you may be required to re-slot your
stock skid pan to fit the new transmission assembly.