Advance Adapters 50-5802 - Manual (Page 2)

FORD T18 4 SPEED TRANSMISSION TO
TOYOTA 4WD TRUCK 1986-87 ( 23 SPLINE)
ADVANCE ADAPTERS INC. P/N: 50-5802
P.O. Box 247, 4320 Aerotech Center Way Old Part No: 711058-23
Paso Robles, CA 93447 PAGE 2 OF 3
Telephone: (800) 350-2223 Fax: (805) 238-4201 Page Rev. Date: 03-23-99
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.
BORG WARNER T18 TRANSMISSION:
This adapter will work on all Toyota 4WD trucks, 1986 through November 1987 with a R151F transmission.
The T18 & T19 transmission can be identified by a case length of 11-7/8" and a case casting number of T18 or 13-01, and
T19 or 13-09. The shift cover has a casting number of 13-01 or 13-09. The P.T.O. opening is on the right hand side towards
the front of the case and the shift cover is mounted to the top of the case with six bolts. The new shaft furnished with this
kit must be carefully compared to the original shaft removed from your transmission. The T18 & T19 transmissions required
for this kit are from Ford 1/2, 3/4 & 1 ton trucks. The front bolt pattern on the Ford transmissions will have an 8-1/2" X
6-1/4" bellhousing pattern with a bellhousing pilot diameter of 4.848".
Make sure the bearing retainer clip found on the front side of some transfer cases is removed prior to assembly of the new
adapter. See illustration.
Before you begin to assemble your transmission, you must make sure that you have received the correct main shaft. The
spline on the end of the shaft must have 27 teeth. Advance Adapters manufacturers two different T18 main shafts and it
is possible that you could receive the 23 spline in error.
When assembling the gears onto the new main shaft, make sure that all gears have the proper end clearance required for
oiling. Make sure that all transmission assembly work is done by a competent mechanic. All surfaces must use gaskets
to prevent oil leakage. Warner gear has used two different shaft designs for the spacer between second and third gear. Some
transmissions will use a snap ring and thrust washer, while others will use a built in shoulder. Both shafts are interchangeable.
When bolting the adapter to the main transmission case, you must use two studs in the lower two holes of the adapter. A
slight modification may be necessary to obtain the proper clearance around the lower bearing cover of the stock transmission.
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 when 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 the number listed above.
The coupler in this kit is made for a 23 spline male shaft that protrudes from the front of your transfer case. When replacing
transmissions that were equipped with regular gas engines, they were only required a 21 spline coupler. The linkage on the
Toyota transfer cases will vary. Some have the control lever on the tailhousing of the transmission, while others have it
on the transfer case. This adapter can be used with either style and if the opening is not used on the top of the new housing
you will need to cover the square opening.