KIT CONSISTS OF:
No. Qty. Part No. Description
ADVANCE ADAPTERS, INC. P/N: 50-0215
P.O. BOX 247, 4320 Aerotech Center Way New Item: (6/95)
Paso Robles, CA 93447 PAGE 1 OF 2
Telephone: (800) 350-2223 Fax: (805) 238-4201 Page Rev. Date: 09-12-00
SPECIAL NOTE:
The components packaged in this kit have been assembled and machined for specific type of conversions. Modifications to any
of the components will void any possible warranty or return privileges. If you do not fully understand modifications or changed 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 values, wiring diagrams and other related equipment. These manual are normally available at automotive dealerships and parts stores.
NV4500 - GM 4WD OUTPUT TO
TOYOTA TRUCK 21 TOOTH TRANSFER CASE
1. 1 51-0215 ADAPTER CASTING
2. 1 52-0215 COUPLER (31 Spline x 21 Spline)
3. 1 716063 COVER PLATE
4. 1 716462 SET COLLAR
5. 1 716564 GASKET
6. 1 716734 SEAL (NAT #471833 - Installed in casting)
7. 4 720040 8mm X 1.25 X 20mm (METRIC)
8. 8 720046 METRIC S.H.C.S. 10mm-1.5 THREAD X 40mm
9. 8 724324 HIGH COLLAR LOCK WASHER 7/16"
10. 1 TT001 TOYOTA TRUCK INSTRUCTION MANUAL
11 . 1 NV001 NEW VENTURE INSTRUCTION MANUAL
INSTALLATION NOTES:
Prior to beginning the transmission to transfer case assembly, you will need to make two modifications that are very critical
to the installation.
1. The output shaft of the NV4500 transmission must be shortened to a length of 4.498". This length is very critical and is
required when assembling it with the new coupler shaft that Advance Adapters has supplied. Refer to the illustration for
the exact cutoff location. Check fit the new Advance Adapters coupler on the 31 spline output shaft of the transmission.
2. In order to minimize the adapter length, we found it necessary to shorten the input shaft of the Toyota transfer case. In
order to achieve the shortest possible adapter and in order to make the new coupler connect the two shafts together, you
will need to shorten the input shaft of the transfer case to a dimension of 2.500". Refer to the instruction sheet for the
exact location and test fit the new coupler on the modified input shaft.
This transfer case adapter kit must be used with a GM 4WD output shaft. The 4WD output shaft uses a 31 spline drive for
the original GM harmonic balancer.
In order to keep the main shaft of the NV4500 in the proper location, it will be necessary to install a special 2-piece locking
collar around the main shaft. This locking collar is P/N 716462. The collar must be installed in a very secure position and
we recommend that lock-tite be used on the thread of the bolts.
The transmission assembly will be approximately 19-3/8" long. With a GM bellhousing assembled onto the front of this
transmission, the overall assembly length will be approximately 25-1/2". This overall length is almost identical to the late model
5 speed transmissions used in the Toyota trucks beginning in 1985. Most new V8 or V6 Chevy installations should be able
to install the new engine without driveline modifications. There will be some exceptions and if there are any questions
concerning the actual position, we suggest that you contact the engineering department at Advance Adapters.
Make sure the bearing retainer clip found on the front side of some transfer cases is removed prior to assembly of the new
adapter. This clip was used to retain lower bearing in Toyota transfer case.
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