I have a 84 blazer with a 305 4barrel, AIR, power windows, PS, and no owners manuel. The sticker under the hood says that it is a Sequoia special, whatever that means. It has a 4 speed Auto tranmission (sticker says HD tran)is this the 700-R4? Also it has a 208 transfer case w/automatic hubs (could be full time,I don't know). I will appreciate any info or a copy of the owners manuel. Also can i just swap out the hubs to a manual like a Warn without messing with anything else.