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In
2000, Jeep began using the NV3550 in Wrangler TJs and Cherokees. It
has become the medium duty 5 speed of choice. It is plenty strong for
a medium size small block V8. All five gears are fully synchronized
and shift very smoothly and easily.
This
unit is conservatively rated by New Venture Gear at 300 ft/lbs torque
handling capacity. The NV3500, used by GM and Dodge with V8 engines,
is an earlier version of the same transmission.
Length:
16.75" Including integral Tcase adapter
Weight:
100lbs
Bellhousing
Bolt pattern:
Input
Shaft/spline: 1-1/8" 10 spline
Oblong
pattern, with 9 metric bolts. It shares the same bolt pattern with the
Japanese made AX15 as used in wranglers 1989-1999.
Gear
Ratios:
|
NV3550
|
|
| First
Gear |
4.01 |
| Second
Gear |
2.33 |
| Third
Gear |
1.39 |
| Fourth
Gear |
1.00 |
| Fifth
Gear |
0.78 |
| Reverse |
3.57 |
Specifications
| Dry
weight: |
97
lbs. |
| Oil
capacity: |
2 liters |
| Rated
GVW: |
7200
lbs. |
| Length (OAL from Engine to Tcase) |
24 (incl Bellhousing & Tcase adapter) |
| Case
material: |
cast
aluminum |
| Rated Torque |
300 ft/lbs (conservative) |
| Input
shaft & spline
|
1-1/8"
10 spline
|
Lubrication:
Jeep/Dodge have a part number for Lubricant for the NV3550: 4874464
We have been advised, however, by our New Venture rep that a 30 wt non
foaming gear oil is suitable for this transmission, and will be
covered under warranty. It uses about 2.2 qts. NOTE: It is NOT recommended to use ATF in this
trans.
Shifters
Jeep
Factory shifters:
Early
style: Square shift stub: Shift handle fits on and is located with a
set screw
Late
Style: Round shift stub with a female thread.
There
is also a type where the stub comes up and is flattened, and has two
holes drilled though it around 3/8 dia. A shift handle is mounted parallel
to this using two thru bolts
Aftermarket:
Both B&M (available from Summit Racing PN BMM 45048) as well as
Hurst (PN 3910113) make aftermarket short throw shifters. (We do not
carry these)
Back-up
light switch wiring: A
customer has advised me that wiring pigtails and kits to build
compatible connectors are available from
Info:
http://www.weatherpack.com/
to Order: (from) LedFoote
High
Impact offers custom engineered conversion packages. Complete NV3550
installation packages are available for MANY vehicles. These include
needed Bellhousing or adapter, any needed clutch components, transfer
case adapters. Transmissions are custom configured with correct
input/output shaft as is optimum for the application.
The fine print: As for "is it 100%
Bolt-in", yes, all the components should bolt together fine.
However, I would never consider or assume any installation of a
transmission that did not come in the vehicle was going to be 100%
bolt in: 1. Might work out that way. 2. Most cases have a
few issues you will need to figure out on the fly. 3. Occasionally
there is some issue we did not anticipate that turns out to be a
hassle. That is rare. In any event, our customer service is always
available to help you resolve whatever issues may arise in your
conversion. Our
Tech Support is generally quite a bit more knowledgeable than the
average Joe you get on the line!
Partial
list of Applications:
We have on-line kit descriptions up for these items:
Jeep Wrangler 2.5L 4cyl (replacing
AX5)
Jeep Wrangler 87-88: Peugeot Replacement
Ford Bronco 66-77
Jeep Wrangler 4.0L
Jeep Wrangler NV3550
replacing automatic
Jeep Wrangler w GM V8
Jeep CJ with GM engine and Dana 18 or 20 Tcase
Jeep CJ with GM engine and Dana 300 Tcase
Jeep CJ with AMC engine
Jeep Wrangler w/ Ford V8
NV3550 Behind Chrysler 5.2 / 5.9L motor
Other Packages
NV3550 into Jeep w/ GM Gen III motor/NP231
Other applications available - Call or E-mail with what you have
in mind! |
