Advance Adapters 50-2704 - Manual

ADVANCE ADAPTERS INC. P/N: 50-2704
P.O. Box 247, 4320 Aerotech Center Way New Item: (3/93)
Paso Robles, CA 93447 PAGE 1 OF 4
Telephone: (800) 350-2223 Fax: (805) 238-4201 Page Rev. Date: 10-01-14
KIT CONSISTS OF:
No. Qty Part No. Description
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.
1. 1 51-2703 ADAPTER HOUSING
2. 1 52-0209 SPUD SHAFT 23 spline (old shaft was 52-2704)
3. 1 52-2706 MAIN SHAFT W/23 SPLINE OUTPUT
4. 2 716042 CROSSMEMBER SLEEVES
5. 1 716223 RETAINER
6. 1 716312 BEARING
7. 1 716455 SNAP RING
8 1 716513 GASKET
9. 1 716713 SEAL
10. 1 716714 O-RING
11. 6 720010 8MM X 1.25 X 40 MM SHCS(ADAPTER to TRANSMISSION)
12. 6 723103 LOCK WASHERS (ADAPTER to TRANSMISSION)
13. 6 723701 3/8"-16 NUT PLATED
14. 6 723704 3/8" LOCK WASHER PLATED
15. 6 723711 3/8"-16 x 2" LG.
16. 2 724302 7/16" FLAT WASHER
17. 2 724311 7/16"-14 x 3-1/2 H.H.C.S.
Note: The spud shaft and main shaft in this kit were changed 10/1/2014 to a 23 spline, they were 27 spline in all kit sold
previous to this date.
LATE MODEL 4 SPEED AUTOMATIC OD FOR
BRONCO DANA 20 TRANSFER CASE 1966-76
GENERAL INFORMATION:
1. This transmission assembly is 26-1/2" overall in length and should directly replace any of the early Bronco drivetrain
assemblies. The original V8 drivetrain assembly is normally 26-1/8" and there will only be approximately 3/8" of a
difference, so driveshaft modifications can normally be eliminated. The U-shaped shifter pattern used on the later
model Bronco transfer cases may not be compatible with this adapter housing. You will need to either modify the
mounting or change to the earlier model shifter pattern that had a straight design. This requires new shift rails to be
install in the transfer case.
2. The crossmember support that we have provided on the bottom of the new adapter housing is very similar to the
original support bracket. It may be necessary to modify the donuts and bolts in order to assemble the existing
crossmember to the new adapter housing.
This kit has been designed to retain the stock Bronco rubber T/C mounts. These mounts were previously equipped with
a 1/2" bolt. Our casting has been drilled and tapped for a 7/16" bolt. We have supplied this kit with the necessary sleeves,
washers, and bolts to properly secure this adapter.
OPTIONAL ITEMS:
P/N 716057 AOD Shaft Kit to fit an
AODE Transmission
The transmission oil pan may re-
quire some clearance modifications
for the front drive shaft. This is only
on the truck style transmission pan