b ustedbuzzard

Been getting to know this 95 sikekick and found the LSPV lever bracket on the rear end upper control arm but no LSPV valve or block (not even a LSPV mounting point). also, 4X4 auto front dif air pump (behind pass side bumper) was not found, I did find a unused wire connector and 3/16" hose end under the pass side headlight. The other end of the hose is in the cabin and hanging over the heater box. The 4X4 light comes on and all four wheels rotate (truck on four jackstands) when transfer case is put into four wheel drive with autotransmission in drive or reverse. Here's the question.
Was it born that way or was it mutated sometime along it's life?