50-2900 : Ford C4 3 speed automatic transmssion to the Jeep 18/20 transfer case (with 6 spline drive gear),adapter kit. (#50-2900)

Retail Price: $698.94

Advance Adapter

Our Ford C4 adapter to the Dana 18 / 20 is 5.00” in length. The adapter material is 356 T-6 heat treated aluminum alloy and the adapter has a provision for a transmission mount. The adapter kit will include adapter housing, new C4 main shaft, vent plug, gasket, seal, fastening hardware, & adapter instructions. This kit must have the transmission built with a manual value body; the shaft will not fit the governor assembly. If a fully automatic transmission is needed for your early Jeep, you will have to give up 2” in adapter length and order kit PN50-2904.

Transfer case

This adapter assembly will fit any Dana Spicer 18 / 20, Scout version with a 6 tooth female drive gear. The transfer case index to the new adapter will require an index retainer & sealed bearing. Please I.D. the transfer case bore size (3-1/8”) small hole or (4”) large hole for proper retainer. Additional information can be obtained in our on-line catalog, Jeep & Scout Vehicle Section: Transfer Case Information, Jeeps 1941-79.


The kit is designed for exclusive use with the Ford C4 automatic transmission. The Ford C4 is a 3 speed transmission was used between 1963-’82. The transmission bellhousing is

Removable, the overall length measures 17.00”.

Required Options

716001 Large Hole Retainer or

716002 Small Hole Retainer

1) 1941-79 General Engine Conversion Info

4) Jeeps & Scout T/C Dana 18/20

1. Ford C4

Top Reviews


by Tom Hansen, from Marysville,Ca

c-4 adapter

great product superior craftsmanship,looks great works great

531 of 1268 people found the following review helpful.

Did you find this review helpful?  Yes  |  No