hey, this friday, I am looking at a 91 D-250 single cab. I havent seen it yet, so I asked him if it was intercooled and he says, "he thinks so" It does have the overdrive transmission.. (he knows cause sometimes the OD doesnt work).. my questions, is I am not sure when they started doing the OD transmissions.. is it 91.5? so if it is overdrive will it also be I/C'ed?
also, about the overdrive.. does anyone know why overdrive might not work so well when its cold? I was thinking even if the fluid is pretty bad it might hinder shiftage..
thanks..