Rock crawler/Rail Buggy, has hydraulic assist steering, 5 point racing harness and seats, 305 HO engine, turbo 350 transmission, NP203 Doubler Twin Stick Transfer Case. 35" x 15 x 15 Boggers, 25 gallon fuel cell, warn winch not included, 4x4 works good, runs good , B & M Shifter, . runs great, drives easy, goes everywhere and is a lot of fun!  Only thing is going to need tires soon.  Buyer is responsible for shipping or pick up.   ....................................................................................NP203 Information       .............................                                                                                                                                                                                                                                                                                                                                                                                              Fullsize, full time, chain driven transfer case. General Motors, Dodge, and Ford all used the NP203 in select 1973 - 1979 pickup applications. It's unique in that it is a full time transfer case, meaning that the gear train contains a differential that splits power between the front and rear axles in the same way that an axle with an open differential splits power between the left and right tires. Therefore, engine power is not necessarily equally split between the front and rear axles while driving. The transfer case does have a locked setting for both low and high range operation, which locks the differential, disabling the full time behavior and equally transmitting power between the front and rear axles. GM and Dodge cases used the same bolt patterns, while Ford had its own design. Despite being chain driven, it is a relatively robust system, though not nearly as desirable of its brother, the NP205. The factory shift positions are (from front to back): Low Lock (Loc) - Low - Neutral - High - High Lock (Loc). As it is a full time case, fuel economy is significantly reduced over a part time transfer case such as the NP205. The answer to this problem is a part time conversion, for which parts and kits are readily available. This essentially disables the full time power split between the front and rear axles, making the transfer case behave like a part time unit. While the factory shift pattern is Low Loc - Low (full time) - Neutral - High (full time) - High Loc, a converted transfer case will have the options 4 Low - 2 Low - Neutral - 2 High - 4 High. While full time operation allows for favorable control in low traction conditions, converting to part time operation greatly reduces power loss through the transfer case and noticeably increases fuel economy. It is common to see NP203/NP205 "doublers", which is quite literally a NP203 mated to a NP205. More specifically, the process mounts the range box (not the entire transfer case) of a NP203 to the input side of a NP205, using machined adapters to mate the parts securely. This accomplishes many things - first and foremost, it allows for up to a 3.94 to 1 reduction (2.01 for the NP203 x 1.96 for the NP205, often advertised as a nominal 4:1) with low range engaged in both transfer cases, effectively doubling the gear reduction of a standard NP205 transfer case. Furthermore, it eliminates the potentially problematic and less favorable chain drive system of the NP203. Doubling the two cases require only using the NP203's helical geared reduction box, NOT the entire drive system. Doubling the two cases is an affordable technique in order to retain an extremely stout gear train while reaping the benefits of a compound low range setup.