Advance Adapters 50-0218 - Manual

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 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 values, wiring diagrams and other related equipment. These manuals are normally
available at automotive dealerships and parts stores.
KIT CONSISTS OF:
No. Qty Part No. Description
ADVANCE ADAPTERS INC. P/N: 50-0218
P.O. Box 247, 4320 Aerotech Center Way New Item: (07/95)
Paso Robles, CA 93447 PAGE 1 OF 4
Telephone: (800) 350-2223 Fax: (805) 238-4201 Page Rev. Date: 04-26-10
NOTES
1. This adapter is designed for exclusive use of the 4WD GM version New Venture Model 4500 transmission. You must
use this transmission due to the spline area where the GM harmonic balancer is located. The shaft must be shortened
to 4.498" long which will be directly behind the 31 spline area. In order to cut off the shaft, you will need to remove
the tailhousing. The shaft can be cut off using an abrasive cut off saw or a skill saw equipped with a special metal
cutting blade. Be sure to use safety glasses during this procedure. You must remove the harmonic balancer and install
the 2 piece set collar. CAUTION: Make sure that the output shaft of the NV4500 does not interfere with the input
shaft of the NP205 transfer case. It may be necessary to grind the end of the shaft for necessary clearance. The
coupler must be trapped and limited to a minimum lateral travel.
2. Install the new sealed bearing into the front of the NP205 transfer case and install the oil seal into the adapter housing.
This will prevent the transfer of oil between the two gear boxes. You will also be required to use some RTV blue
silicone on the splines of the transfer case side of our coupler. Unless this is done, the coupler shaft we manufacture
will allow fluid to transfer down the splines into the transfer case.
ONLY Apply silicone to the inside of our coupler
and to the transfer case side of our coupler. As you slip the coupler over the splines, the silicone will fill the voids
on the splines. We also recommend that you take the excess silicone that should have squeeze inward towards the
center of the coupler and smooth it out with your finger. This will seal the splines to avoid oil transfer. Let the silicone
dry for 6 hours before installing the transmission to minimize the chance of silicone getting into the NV4500
tailhousing.
3. Bolt the new larger tailhousing to the back of the transmission. Make sure all of the gears clear the new housing and
the dowel pins are installed. Assemble the plate to the transfer case.
1. 1 51-0217 ADAPTER HOUSING 6.3" LG (Modified 51-0205)
2. 1 51-0216 ADAPTER PLATE
3. 1 52-0218 COUPLER
4. 1 715529 T/C LINKAGE BRACKET
5. 1 716056 STEEL TUBING CROSSMEMBER
6. 1 716301 SEALED BEARING
7. 1 716462 2-PIECE SET COLLAR
8. 1 716703 SEAL (NATIONAL #415259)
9. 8 720028 S.H.C.S. 10mm x 1.5 - 35mm LONG
10. 8 723730 S.H.C.S. 3/8"-16 x 1-1/4"
11. 6 723740 S.H.C.S. 3/8"-16 x 1-1/2"
12. 2 723723 3/8"-16 x 1-1/2" H.H.C.S. (CROSSMEMBER MOUNT)
13. 1 NV001 NEW VENTURE INSTRUCTION MANUAL
NEW VENTURE 4WD MODEL 4500 5 SPEED
TO GM NP205 1971-1979 27 SPLINE