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Adapter Kit with Electronic Transmission
Adapter Kit w/o Electronic Transmission
The Adapter
The Novak TH700R-4 / 4L60 to Jeep transfer case adapter is 3.1-inches long for a combined transmission and adapter length of 26.7-inches. The adapter itself is cast and machined of a high-grade aluminum alloy, featuring thick flanges, a heavy cross-section and strength adding gussets.
The adapter itself is machined of a high-grade aluminum alloy, featuring thick flanges and a heavy cross-section. 700R-4 Versions
These kits are for the square, four-bolt tailhousing 700R-4 / 4L60 or 4L60-E, typically made through 1995. Some 1996 and later versions have a hex, six-bolt pattern tailhousing and removable bellhousing. Click here for this kit.
We offer two adapter kits. One for the conventional 700R4 (aka 4L60). The other for the 4L60-E, which is the electronically controlled version of the 4L60. Our kit for the 4L60-E permits you to use the electronically controlled 4L60-E (four-bolt version) with your Jeep transfer case. Note that you will need to mildly modify the 4L60-E tailhousing to install the included vehicle speed sensor (VSS). Also, make sure to plan on connecting your transmission to the GM ECM (if doing a GM engine swap) or get a standalone electronic transmission controller, available from GM, TCI, Jet, B&M and others.
Any version and year of the TH700R-4 can be adapted to the NP transfer cases, including "90 degree" (Gen. I, II, III V6 & V8 Small Block or Big Block engines). Transmission Output Shaft
4wd versions of the Turbo 700R-4 / 4L60 and early 4L60-E are all ready to bolt up to our adapter assembly as the required style of output shaft is already installed. 2wd versions work equally well, but you will need to install a 4wd style transmission output shaft (image, below). We carry good, used GM shafts for this purpose. This requires disassembly of the transmission, and we recommend the services of a transmission professional. The basic installation is 2-3 hour bench job and may include simple gasket and seal replacements. Some choose this as the time for a more thorough master rebuild and update. Transfer Case Input Shaft
The included input gear features 27 splines, to replace your Jeep 23 spline version. for a direct connection to the 4wd style transmission output shaft, as discussed above.
- Fits: All with 700R4 or Early 4L60E Transmission
- Includes: Adapter, transmission output shaft (23 spline), stainless steel base mount, seal ring, gasket, seal, fastening hardware, reluctor ring (4L60E only), speed sensor (4L60E only) and instructions
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