Are the different instrument clusters interchangeable?

Of all the whackadoodle failure modes, the pointer fell off of my gas gauge, and I'm guessing that the instrument clusters are welded shut, not serviceable. The upscale clusters, with a tachometer, are much more widely available.
(I have absolutely no use for a tachometer; my minivan is equipped with an automatic transmission. But they were installed in 95% of Caravans anyway)