well, if it is for the 6.5L truck, i would not bank on getting parts. what i did for my 91 was get an identical cluster for it. thats right, i found a working one taken out of a truck actually identical (in specs, anyways!) right down to the mt/2wd 3.42 rear end, guy even checked to find that rear code. that took about a year to find :thumbsup:
but your truck is speced more common than any of mine, i would troll e-bay for a while and see what falls in your net.
Good luck!