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Transmission: |
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NV4500 (NV = New Venture) 5 speed manual with overdrive
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Sources: |
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1993 and later Dodge 4 wheel drive with gas engines (not diesel). GM also has a NV4500, but most adapter kits only support the Dodge version.
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Identification: |
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The NV4500 has a cast iron case with a single piece, aluminum, bolt-on top cover with shifter. This transmission has PTO cover plates on both the driver's and passenger's side. Weight is approximately 195 lbs.
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Adapter required? |
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This swap requires two adapters; one between the bell housing and transmission and another between the transmission and transfer case, as well as a new spud shaft.
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Pros: |
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The super low first and overdrive 5th gear make this one of the few transmissions that has the best of both worlds. The combination allows you to have comfortable highway speeds and still be geared to handle the tough trails. The NV4500 is a fully synchronized, smooth shifting, heavy duty transmission.
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Cons: |
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Expense and lack of availability seem to be the biggest drawbacks to the NV4500. Because they're a popular swap for several other 4x4's, finding one in a local salvage yard can be difficult. They are available new, but the $1900 price tag may be a little tough to stomach. Under dash air conditioning is very difficult because the shifter handle is so tight to the underside of the dash.
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Cost: (Approximate) |
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Transmission: $800 used and $1900 new
Adapter (complete kit): $800
New drive shaft $150-200
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Bell housing: |
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An adapter is needed at the bell housing to make up for the Dodge bolt pattern and longer NV4500 input shaft.
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Modifications needed: |
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The swap requires a custom fabricated cross member and transfer case shifter brackets. Spline differences in the NV4500 input shaft require a new clutch disc. The overall length is 2" longer than stock requiring a shorter drive shaft. Because of the top shifter a hole needs to be cut in the top of the transmission tunnel. A body lift isn't required, but will ease installation.
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