8 1/4 sure grip... what year Dakotas?

Which year Dakotas are a workable donor for the 8 1/4 sure grip (just the unit, not the entire rear). I'm reading a few threads that seem to say up to around '95 and others make mentions of '97's, but I cant seem to confirm the exact cutoff? Trying to expand my donor car options, can anyone help on this one?