Jeep Transfer Case Identification

IDN-401 NP231, NP233, NP241, NP242 Input Bearing Width Tech Help Most New Process and New Venture NP231, NP233, NP241, and NP242 series transfer cases used in Chevy, Dodge, GMC, Jeep, and Ram 4x4s use input bearings of the same inside and outside...

IDN-402 Input Shaft Clutch Tooth Profiles for NPG and NVG Transfer CasesMost New Process and New Venture 2 Speed, Chain Drive Transfer Cases utilize a sliding Range Sleeve the engages with either clutch teeth in the back of the input shaft (high range)...

IDN-403 NP231, NP241 Input Shaft Chart for New Process Transfer CasesMany New Process and New Venture Chain Drive Transfer Cases use input shaft and planetary low range units of similar design which allows for a fair range of input shaft...

For parts identification purposes, a Round Tag is affixed to the back of the rear case. Stamped on the tag are the Model Number (ex: NV271D or MP271), Assembly Number (8 digit number plus two letters), Transfer Case Build Date, and Low Range...

Starting in the mid-1990s, most New Process and New Venture transfer cases factory applied Decal usually located on top of the front case on on the bottom edge of the rear housing. The Decal has a Bar Code, serial number, Dodge assembly part...