Advance Adapters AX15 - Manual (Page 34)

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ADAPTER PACKAGES & INDIVIDUAL COMPONENTS
for 1966-77 BRONCOS
We offer a complete adapter package for a Bronco transmission swap. The components in
this package can also be purchased separately. We currently offer rebuilt NV4500
transmissions. The Dodge 4WD NV4500 is cataloged under Part No. 26-0029R . If you wish
to obtain your own transmission, please refer to the Dodge identification charts for both current
and past OEM part numbers.
The Dodge NV4500 has been recognized as the ultimate manual transmission of choice for the
early Broncos. With a 5.61:1 low gear ratio, 27% overdrive, and a synchro-reverse gear, this
transmission works well with these vehicles. The adapters we manufacture only fit the
Dodge
Standard Duty 23 and 29 spline 4WD transmissions .
NOTE: On 1999 & newer Dodge transmissions, the handle assembly was changed. Our kit
packages are designed for the newest transmission shifter configuration. If you have obtained
a 1998 or earlier transmission, you will need to substitute
P/N 716050D1 with P/N 716050D .
The transfer case adapter for these kits couple to the stock
Dodge tailhousing. The adapter is furnished with either a new
23 or 29 spline spud shaft to adapt the Dodge transmission to
the Dana 20 transfer case. The stock Dodge housing requires
the two aluminum bosses to be cut off for proper
transfer case shifter clearance with the Bronco
Dana 20 (see photo above).
Ford Broncos used two styles of transfer case
shift controls. These are known as the “T” style and
the “J” style. A shifter bracket is included in these kits
to retain only the “T” style linkage. Vehicles equipped
with the “J” style can either be changed over to the “T” style
linkage, or the necessary brackets can be fabricated to use
the “J” linkage. The stock crossmember on these vehicles
must be removed, since our adapter does not have the provi-
sion to retain the stock angular support. We have included a new
rubber support mount that bolts to our adapter. We also manufac-
ture a new structural member that fits between your frame rails and bolts
to this rubber mount. This mount can be purchase separately (P/N 716000-
4) , or you can fabricate your own crossmember support.
The bellhousing adapter plate bolts to the Dodge NV4500, coupling it to your stock Ford bellhousing. This kit requires the
use of a stock Ford bellhousing with a 4.848” index diameter. We have provided a new clutch disc in the kit since the
stock Ford is 1-1/16” 10 spline and the NV4500 is 1-1/8” 10 spline. (For the clutch components, refer to the Ford Adapter Plate
section of this manual). When installing these components, driveline and floorboard modifications will be required.
P/N 27-0044T - 29 spl. DODGE NV4500 to Ford Dana 20
P/N 383735 - 11” Centerforce clutch disc
P/N 50-0230 - Dodge 29 sp. NV4500 to Bronco Dana 20 T/C adapter
(adapter 7.300”, tranny 12.375”)
P/N 712551 - Dodge NV4500 to Ford bellhousing 4.848” index
P/N 716101-2 - Rubber crossmember mount
P/N 716050D1 - Shifter handle assembly
I f you obtain a early Dodge NV4500 transmission with a 23 spline output shaft, you will need to
replace kit P/N 50-0230 with the kit listed below.
P/N 50-0209 - Dodge 23 sp. NV4500 to Bronco Dana 20 T/C adapter
(adapter 7.300”, tranny 12.375”)