Advance Adapters 50-8903 - Manual (Page 2)

ADVANCE ADAPTERS INC. P/N: 50-8903
P.O. Box 247, 4320 Aerotech Center Way Old Part No: 711089-19
Paso Robles, CA 93447 PAGE 2 OF 4
Telephone: (800) 350-2223 Fax: (805) 238-4201 Page Rev. Date: 07-16-13
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.
INSTALLATION INSTRUCTIONS
Due to the split design of this transfer case. A shop manual is handy for disassembly. The transfer case must be
disassembled to install the adapter.
This kit is for the GM 700R-4 4 speed automatics to all Toyota Land Cruiser split-type transfer cases. The design of this
kit is based off of a 2WD 700R4. The 2WD output shaft must be cut to the length as illustrated on Page 3. As a courtesy,
we have supplied a complimentary 2WD shaft that has been cut to the proper specification. Once your 2WD output shaft
has been cut or the supplied shaft has been installed, the new Advance Adapters spud shaft can now be put into position.
The new spud shaft should be pressed into the new rear bearing so the external snap ring is towards the threaded end
of the shaft. With the bearing on the spud shaft, you can now install the assembly into the back portion of the adapter.
The external snap ring will lock the spud shaft into position. A special heat-treated gear spacer has been provided for
determining the exact gear location. Before installing the spacer on the spud shaft, we recommend applying some RTV
silicone on the spline portion of the spud shaft that this spacer covers. This will prevent any fluid transfer between the
two gear boxes. The threaded portion on the end of the spud shaft will be identical to the 4 speed transmission being
replaced. The original gears, bearing, washer, and nut will all be reused onto the new spud shaft. The transfer case indexes
to the adapter off the new rear bearing and we also use the lower dowel pin on the transfer case. The upper dowel pin
is not used and our casting hole has been over sized to fit over the stock dowel pin location. The bearing give the proper
indexing and the lower dowel provides the proper rotation.
The stock transfer case lock nut is Toyota P/N 90179-26004. On the right side of the adapter, you will be able to mount
the special shift bracket (illustrated on Page 4). This bracket should position your shifter in the original floor board location.
The stock gating on this shifter, if being retained, will have to be modified to fit. The bottom of the transfer case adapter
has a support mount that is identical to the FJ62 support that was previously used on the bottom of the 4 speed
transmission. The original crossmember support will need to be repositioned directly beneath the new transfer case
adapter housing.
GM 700R-4 4 SPEED AUTOMATIC:
When installing the new transfer case adapter, make sure that the coupler and the output shaft do not bottom out. We
have found on occasion that a transmission output shaft may be slightly longer than what we have allowed for; and when
coupling into our new spud shaft, we find a small amount of interference. The adapter housing and spud shaft must be
assembled to the back of the transmission without interference.
DO NOT FORCE THE NEW TAILHOUSING ONTO
THE TRANSMISSION. If assistance is needed, please feel free to call us toll free number at (800)-350-2223.
When assembling the adapter housing to the transmission case, we have provided you with a new square type "O"-ring
seal to prevent fluid leakage. This seal is a stock GM item that is used on all 700R-4 installations. On most installations,
a slight pan modification may be required for clearance of the front Universal yoke.
CROSSMEMBER NOTE:
This casting is designed around the FJ60 manual transmission crossmember mount. On some manual applications and
all automatic stock transmissions, you may need to purchase Toyota #12371-61020. This part is the new Toyota rubber
mount.
GM 700R-4 AUTOMATIC OVERDRIVE
TO LAND CRUISERS 1980-89 FJ60 (4 SPEED)