Advance Adapters 50-0431A User Manual
Kit consists of, Optional items
SPECIAL NOTE: The components packaged in this kit have been assembled and machined for specific types of conversions. Modifications to any of the
components will void any possible warranty or return privileges. If you do not fully understand the modifications or changes that will be required to complete
your conversion, we strongly recommend that you contact our sales department for more information. This Instruction Sheet is only to be used for the assembly
of Advance Adapter components. We recommend that a service manual pertaining to your vehicle be obtained for specific torque vales, wiring diagrams and
other related equipment. These manuals are normally available at automotive dealerships and parts stores.
ADVANCE ADAPTERS, INC.
P/N: 50-0431A
P.O. Box 247, 4320 Aerotech Center Way
New Kit: (02/03)
Paso Robles, CA 93447
PAGE: 1 OF 5
Telephone: (800) 350-2223
Fax: (805) 238-4201
Page Rev. Date:
02-11-13
GM 4L60E TO NP231 TRANSFER CASES (21SPL)
upgrading to 95 & NEWER 23SPL.
KIT CONSISTS OF:
No.
Qty
Part No.
Description
OPTIONAL ITEMS:
Qty
Part No.
Description
1.
1
51-0405
4L60E / UNIVERSAL ADAPTER
2.
1
51-6800
ADAPTER CASTING (Ref: 711168)
3.
1
52-9101
700R-4 SHAFT
4.
1
300619
RELUCTOR SENSOR
5.
1
716095B
23 SPLINE 87-95 TC INPUT
6.
1
*716325A
POCKET BEARING (INSTALLED IN 716095B)
7.
1
716760
NP231 INPUT SEAL
8.
1
716079
22mm PLUG
9.
1
716072
RELUCTOR RING CLAMP RING
10.
1
716082
700R PLASTIC WASHER
11.
1
716511
O-RING (51-6800 CASTING)
12.
1
716517
GASKET, NP208 T/C
13.
1
716729
SEAL (NAT. #456057) (ADAPTER)
14.
6
720015
10mm FLAT WASHER (USE ON 10mm BOLTS)
15.
6
720037
10mm x 1.5mm x 35mm H.H.C.S. (INTO 4L60 CASE)
16.
6
720038
10mm LOCK WASHER (USE ON 10mm BOLTS)
17.
4
720046
S.H.C.S. 10mm-1.5 X 40mm LG. (51-6800 TO THE 51-0405)
18.
6
723701
NUT 3/8"-16 PLATED (USE ON STUDS)
19.
6
723704
3/8" LOCKWASHERS (USE ON STUDS)
20.
6
723711
STUD BOLT 3/8"-16 x 2" LG (TRANSFER CASE STUDS)
21.
2
723730
S.H.C.S. 3/8"-16 x 1-1/4" LG. (STUD REPLACEMENTS)
In 1996, GM produced a newer version of its electronically controlled 4L60E. This
4L60E transmission is 21-1/2" long, and has a removable bellhousing. It has
a hex bolt pattern on the output side of the transmission, similar to a
TH400.
The kit which you have purchased was designed not only to adapt
the 4L60E to the NP231 case, but also to maintain the pulse
generator to run the computer. We have included a 700R4 shaft in
this kit to be installed in the transmission. Once installed in the
transmission, you may begin to assembly the pulse system on the
transmission. First is the reluctor ring. This clamp-on reluctor ring
fits over the stock governor gear on the supplied output shaft. It
creates 40 pulses for each revolution of the output shaft for the
drivetrain control module. We have provided two reluctor sensor
locations to choose from in the adapter. The hole not being used will need
to be plugged with the brass plug provided.
1
716008
Crossmember mount