Advance Adapters 50-4400 - Manual (Page 2)

FORD C4 AUTOMATIC TRANS TO
TOYOTA 4WD TRUCK 1979-87 (21 Splines)
ADVANCE ADAPTERS INC. P/N: 50-4400
P.O. Box 247, 4320 Aerotech Center Way Old Part No: 711044
Paso Robles, CA 93447 PAGE 2 OF 2
Telephone: (800) 350-2223 Fax: (805) 238-4201 Page Rev. Date: 01-16-12
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.
FORD C4 AUTOMATIC TRANSMISSIONS
The Ford C4 automatic transmission has a case length of 11-1/8", 11 bolts for holding the oil pan in position, and has a
removable front bellhousing. The bellhousing is available for 289, 302, 351C, and 351W Ford engines. There is two
different main case options that are referred to as either a "
flared case " or a " step case ". The step case has the oil dipstick
entering the transmission case, while the flared case has the dipstick entering the transmission pan. Both models are
acceptable for use with all the Advance Adapters kits. The V8 bellhousing length is 5-7/8", and can be interchanged with
the 2.8 V6 bellhousing on Bronco II and Ranger conversions. On transmissions 1970 and earlier, the pump shaft was slightly
longer and will require shortening for use with our new output shafts. The transmission should be assembled by a competent
mechanic to make sure the transmission operates correctly. The new shaft should be identical to the original shaft with
the only exception being the new splined area for use with the transfer case adapter.
Most C4 transmissions have a breather on the main case of the transmission. There are a few applications where the breather
is installed into the tailhousing. We have included with your kit a new breather for installation into your new adapter housing
. The installation procedure is to simply press the new vent plug into position. If this is not done , then you will have extreme
pressure and leakage out the transmission dipstick.
When installing the new tailhousing on the back of your transmission, it may be necessary to trial fit the adapter into position;
and make sure that the linkage has all the proper clearance on the internal cavity of the adapter. The bolting of the tailhousing
to the main transmission may need a slight amount of grinding for proper head clearance due to the aluminum sand casting
tolerances.
The coupler in this kit is made for a 21 spline male shaft that protrudes from the front of your transfer case. When replacing
transmissions that were equipped with turbocharged engines, you will need to use a 23 spline coupler in place of the 21
spline coupler furnished with this kit.
When installing the new transfer case adapter, make sure that the coupler and the output shaft do not bottom out. 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.
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.
All installations will require the use of a transmission cooler. The cooler can be either installed in the radiator or a remote
location is acceptable. The transmission shift control needs to be cable operated. We offer a B&M sport shifter, P/N 715680
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.
If you have a 1989 - 95 electronic fuel injected 4 cylinder. The transfer case shifter linkage was relocated on the 5 speed
tailhousing. The shifter mechanism for both the transfer case and the transmission were one unit. When using this transfer
case with any of our transfer case adapters, you must either modify or replace your transfer case. By changing the shifter
rods from a 1984-88 (Carbureted 4 cyl.) transfer case or using Toyota part numbers 36314-35020 (high-low rod) and 36313-
35020 (front drive rod), you will be able to retain your stock transfer case. The other option is to purchase a 1984-88
(Carbureted 4 cyl.) transfer case.