4L60E HEX PATTERN/NP231 21T UPGRADING TO 95&UP 23 SPLINE
Note: This adapter assembly includes a new 4L60E / 4L65E output shaft. This adapter kit provides the shortest overall length possible!!
The 4L60E hex bolt adapter to the Jeep 21 spline New Process transfer case is 3.00 in length. And the overall length of the transmission and adapter is 24.875”. Adapter material is 356 T-6 heat treated aluminum alloy. The adapter has a provision our H.D. transmission mount. The adapter kit includes a 2 piece adapter housing, 4L60E 23 spline output shaft , 23 Spline New Process 231 input gear, GM VSS sensor, reluctor ring, o-ring, gasket, fastening hardware, and adapter instructions.
Transfer Case
This adapter assembly will fit the Jeep New Process transfer case with a 21 spline input shaft. This kit will upgrade the input of the NP231 transfer case to the stronger 23 spline version.
Transmission
The adapter kit is designed for exclusive use with the 1997 & up 4L60E / 4L65E GM automatic transmissions.
Note:
- On Jeeps 1995 & newer, New Process used a different planetary assembly. This late model transfer case can be identified by one of three case model numbers: 52097-894, 52098-361 & 52098-540.
Bill Of Materials
Products specifications
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Transfer Cases
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Jeep New Process 231 (21 Spline Input) |
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Transmissions
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GM 4L60E (M30) Automatic 2 Wheel Drive GM 1996-2006 |
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Transmissions
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GM 4L60E (M30) Automatic 4 Wheel Drive GM 1996-2006 |
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Transmissions
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GM 4L65E/4L70 (M32) Automatic 2 Wheel Drive GM 2001-2006 |
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Transmissions
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GM 4L65E/4L70(M32) Automatic 4 Wheel Drive GM 2001-2006 |
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