Advance Adapters 50-3601 User Manual
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TH400 TO BRONCO DANA 20 TRANSFER CASE
ADVANCE ADAPTERS INC.
P/N: 50-3601
P.O. Box 247, 4320 Aerotech Center Way
New Item: (08/08)
Paso Robles, CA 93447
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Telephone: (800) 350-2223
Fax: (805) 238-4201
Page Rev. Date:
08-28-08
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.
ASSEMBLY INSTRUCTIONS for the TH400 adapter: All fasteners should be secured with green Loctite
1.
Trial fit the adapter against the TH400. If it will not fit flush against the transmission, then grind a small portion around
the speedometer gear housing.
2.
Install the new output shaft provided by Advance Adapters. This should be done by an experienced transmission
technician.
3.
Apply silicone sealant to the TH400 to adapter gasket. Assemble the adapter to the transmission with the six 3/8"-16
x 1-1/2" socket head cap screws.
4.
Check the stickout length of the output shaft with reference to the adapter housing. It should not stick out more than
1/4" (.250 in.).
5.
Trial fit the transfer case to the adapter casting.
DO NOT "SUCK-UP" THE TRANSFER CASE WITH THE STUDS!
SEVERE DAMAGE WILL OCCUR .
The input gear on the transfer case should have enough pocket to accept a 1/4"
(.250 in.) stickout.
6.
Install the seal into the casting with open side of the seal facing the transmission.
7.
Apply a thin coat of silicone sealant to the transfer case gasket. Install the transfer case and secure it with Loctite,
nuts and lockwashers.