Borg Warner T10 4 speed to Jeep Dana 300 transfer case;With 2nd design thick hub main shaft; California Residents: WARNING The Borg Warner Super T-10 adapter to Jeep Dana 300 is 7.625 inch in length. And the overall length of the transmission and adapter is 17.125 inch. Adapter material is 356 T-6 heat treated aluminum alloy and the adapter has a provision for a transmission mount. The adapter kit includes a two piece adapter, new transmission main shaft with 0.250 inch hub and fine spline for the reverse gear, spud shaft, gaskets, fastening hardware, and adapter instructions. The adapter assembly fits the1980-86 Jeep Dana 300. All 300s use a 23 spline input. Some of the adapters we manufacture include a new Dana 300 input with a different input spline. Therefore, if you obtain a Dana 300 from a salvage yard, please verify the input spline.