TH350 X JEEP DANA 300 (-1312)

Advance Adapter

Our Advance Adapter 50-6304 will allow you to adapt a GM TH350 3 speed automatic transmission to the Jeep Dana 300 transfer. The adapter housing is 3.625″ in length and is manufactured from 356-T6 heat treated aluminum alloy. We also supply a mounting provision on the bottom of the housing to bolt-on our heavy duty transmission mount (716021). The adapter kit includes an adapter housing, 27 x 23 spline spud shaft, bearing, snap rings, gasket, o-ring, fastening hardware and adapter instructions.

Transfer case

The adapter assembly will fit the Jeep Dana 300. This transfer case was used in the 1980-’86 CJ-7 series. All 300s use a 23 spline female input shaft. 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.

The adapter assembly will fit the Jeep NP231 transfer case with a 23 spline input shaft. Introduced in 1988, the Jeep NP231 is a part-time transfer case became the standard for XJ and YJ models. It was also used in six cylinder ZJ models through 1995. Chain driven with a 2.72:1 low range, it’s reliable even with more than stock horsepower applied.

Bill Of Materials

• ADAPTER- TH350 TO D300 / 51-6300
• SHAFT- GM27/NP231 23SP SPUD / 52-6302
• 50-6300 BOLT PACK / 714201
• SEALED BEARING 209RS / 716308
• SNAP RING (T350 / T400) / 716450
• TRUE ARC SNAP RING HO-315STPA / 716456
• GM AUTO TRANSMISSION O RING / 716511
• GASKET-N.P.208 TRANSFER CASE / 716517
• STUD BOLT 3/8 -16 X 2 LG B7 / 723711