Advance Adapters AX15 - Manual (Page 26)

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CHEVY ENGINE WITH A NP231 NV4500 KITS CHEVY ENGINE WITH A NP231 NV4500 KITS CHEVY ENGINE WITH A NP231 NV4500 KITS CHEVY ENGINE WITH A NP231 NV4500 KITS CHEVY ENGINE WITH A NP231 NV4500 KITS
(AX15/NV3550 REPLACEMENT) (AX15/NV3550 REPLACEMENT) (AX15/NV3550 REPLACEMENT) (AX15/NV3550 REPLACEMENT) (AX15/NV3550 REPLACEMENT)
P/N 27-0011T - 29 spl. DODGE NV4500 to Chevy V6 & V8 Full bhsg. design
(AX15 & NV3550 replacement)
The overall assembly length is 24.750”. When performing an engine conversion at the same time as a NV4500 installation, driveline
modifications are not normally required. Our new bellhousing uses a new external slave cylinder that bolts to the outside of the
bellhousing. Refer to
Page 47 for more information on the 712576 bellhousing kit.
When coupled to the AX15 or NV3550, the stock transfer case used a 23 spline input gear. If you obtain a 23 spline NV4500, the
stock transfer case input gear can be retained. If you obtain a later model NV4500 transmission with a 29 spline output shaft, then
a new 29 spline input gear for the New Process 231 transfer case will need to be installed.
The transfer case adapter is the shortest design possible to couple to the New Process transfer case. This adapter comes with
a shifter bracket that allows the use of your stock transfer case shifter. Jeep TJs require a different transfer case shifter bracket
which can be switched out before shipping the kit. This packaged kit include a new support crossmember which couples to the
stock skid pan. Modifications will be required to your floorboard for the shifters, and the skid pan will require new holes to be drilled
for our crossmember support. A body lift is normally recommended for clearance. Due to the different transfer case shift controls
found on Jeep Cherokees, this kit should not be used with these vehicles.
This kit is also supplied with a new external slave cylinder. When coupling this new slave cylinder to your stock master cylinder,
you will be required to use one of the following clutch fittings,
P/N 716130 or 716130TJ . The correct fitting will depend on which
configuration you have on your stock master cylinder fitting (fittings are shown on the previous page).
These kits include: These kits include: These kits include: These kits include: These kits include:
P/N 50-0204 - Transfer case adapter kit
P/N 712576 - Bellhousing kit
P/N 716008 - Crossmember mount
P/N 716130 - Hydraulic master cylinder fitting
P/N 716130H - 42” Stainless hose - 3 fitting
P/N 716331 - Jeep slave cylinder kit
P/N 716050D1 - Shifter handle assembly
P/N 50-0231 - 29 Spline input gear
(TJ optional transfer case bracket) P/N 715542 can be substituted for P/N 715531 which is part of the transfer case adapter kit.
AMC FULL BELLHOUSINGS FOR THE NV4500:
On Jeep transmission conversions that are retaining the original 4.2, 4.0 6 cylinders, or a V8 engine, we manufacture full
bellhousings that will bolt directly to your Jeep engine and adapt to the NV4500. Depending of the year of your vehicle, our new
bellhousings are compatible with both the external hydraulic clutch controls or a stock mechanical linkage. These bellhousings
were designed to be used with either the 1980-82 Iron Duke slave cylinder or the 1972-86 CJ5/CJ7 mechanical linkage. The
bellhousing kits come complete with a new clutch release arm, boot, and pilot bushing.
These bellhousings are designed to be used with a standard GM NV4500 input shaft. Most of the kits listed in the Jeep section
call for a Dodge 4WD NV4500. If you are ordering one of these bellhousings separately, and you are using a Dodge transmis-
sion, then you will also need to purchase this GM input shaft
(AA Part No. 52-0221) . The two kits listed below are designed
to fit the two index diameters of the NV4500 transmission. If you are using a 1993-95 GM NV4500, you will be required to use
bellhousing
P/N 712571 . This transmission uses a 5.125” bearing retainer index diameter. If you are using a 1996 & newer
GM NV4500 or any Dodge NV4500 (with the input shaft change), you will be required to use bellhousing P/N 712568 . These
year transmissions use a bearing retainer index diameter of 5.600”. For GM NV4500 installations, this bellhousing has a bolt-
on throw out bearing retainer to support the release bearing. When using a Dodge transmission, the stock bearing index retainer
must be removed and machined. The specifications are listed on the instruction sheet provided with this kit.
Both of these bellhousings have provisions for the late model 4.0L flywheel sensor. The stock Jeep clutch disc and pressure
plate can be used; however, these bellhousings were designed to be used with the Centerforce clutch components. We have
seen on a few occasions where the stock clutch components did not provide adequate clearances. In most cases, this was
caused by the flywheel thickness. These bellhousings are compatible with flywheels that are approximately 1” thick from the
crank flange. The recommended Centerforce components are as follows: Clutch disc
P/N 384193 , pressure plate P/N
CF361897 (hydraulic linkage), P/N CF361675 (mechanical linkage) or P/N CF361890 (1986 & newer hydraulic linkage),
and release bearing P/N N1430 .
This kit is designed for our NV4500 trans-
mission P/N 26-0029RGM. If you are obtain-
ing your own transmission, you will need to
order a new input shaft to work with the
bellhousing.
P/N 52-0221 - GM input shaft.