TH350 2WD X JEEP NP231 1987-94

Advance Adapter

Our Advance Adapter 50-6801 will allow you to adapt a GM 2WD TH350 3 speed automatic transmission to the Jeep NP231 transfer case. The adapter housing is 1.50″ 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 (716008). The adapter kit includes an adapter housing, new TH350 27 spline output shaft, 27 spline input gear, bearing, gasket, seal, o-ring, fastening hardware and adapter instructions.

Transfer Case

The Advance Adapter kit is designed to fit Jeep New Process model 231 with a 21 or 23 spline input shaft.

Bill Of Materials

• ADAPTER- TH350 TO JEEP NEW PROCESS / 51-6800
• SHAFT-TH350 4X4 / 52-1200
• INPUT GEAR- NP231 27 SPLINE PRE 95 / 716202
• GM AUTO TRANSMISSION O RING / 716511
• GASKET-N.P.208 TRANSFER CASE / 716517
• SEAL CR#19466 / 716729
• SEAL-NP231 STOCK REPLACEMENT / 716760
• LOCK WASHER 3/8 ZINC / 723704
• H.H.C.S. 3/8 -16 X 1 PLATE GR5 / 723721
• S.H.C.S. 3/8 -16 X 1-3/4 / 723729
• BOLT 3/8 -16 X 1.25″ SHCS ZNC / 723730