Nv3550 Transmission



  1. Nv3550 Transmission Rebuild Kit
  2. Nv3550 Transmission Diagram
  • Jeep NV3550 Transmission Parts The New Venture NV3550 was released in the Jeep TJ Wrangler and XJ Cherokee in 2000, as the replacement to the AX15 transmission. ( 5013306AA ) Main Drive Gear Retainer, 2000-04 Jeep Wrangler, 2000-01 Cherokee XJ, 2002-04 Liberty KJ with NV3550 5-Speed Transmission by Crown Automotive.
  • Fits: Nv3550 Transmission 2002-2004 Liberty KJ. 31 View Details. Shift Fork 5th & Reverse. Part no: 5083104AA. Fits: 2003-2004 Jeep Wrangler.
  • Gaskets are not used in the NV3550 transmission. Sealers are used at all case joints. Recommended sealers are Mopart Gasket Maker for all case joints and Mopart silicone sealer, or equivalent, for the input shaft bearing retainer. Apply these products as indicated in the assembly procedures.

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.

Nv 3550 transmission what vehicles


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Sale Pricing for a limited time:

Nv3550 transmission fluid change

Rebuilt and Dyno Tested NV3550 – $1350 + $350 core charge (refundable upon return of good reuseable core without a cracked case). Shift tower not included. Two year warranty, 24,000 mile warranty.

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 transfer case adapter
Bellhousing Bolt pattern:

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:

First Gear4.01
Second Gear2.33
Third Gear1.39
Fourth Gear1.00
Fifth Gear0.78
Reverse3.57

Specifications:

Nv3550Nv3550 Transmission
Dry Weight97 lbs.
Oil Capacity2 liters
Rated GVW:7200 lbs.
Length (OAL from Engine to Transfer Case24 (incl Bellhousing & T-Case Adapter
Case Material:Cast Aluminum
Rated Torque300 ft/lbs (conservative)
Input shaft & spline1-1/8', 10 spline
Transmission

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.

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
A customer has advised me that wiring pigtails and kits to build compatible connectors are available from

Conversion Packages

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!

We have on-line kit descriptions up for these items:

Nv3550 Transmission Rebuild Kit

Partial list of Applications:

Nv3550 Transmission Diagram

Other applications available – Call or E-mail with what you have in mind: info@high-impact.net