And just for sake of anyone else reading this, stick to the same # of cylinders, and fuel type, when doing cluster swaps. In other words a diesel cluster won't work right in your gas truck, and you don't want a V6 cluster for your V8 truck, or vice-versa. Ya know? The tach won't read correctly. Someone forever ago posted the info to hack it to fix that but I have no idea where it is.
OH, and if you've never pulled one of these clusters before, on automatic trans trucks be sure you unclip the string that operates the gear indicator first. It's clipped on at the bottom of the shift bowl trim on the column, and wraps around it over to the cluster. Real simple to just slide the clip off. Otherwise, you're gonna break it when you remove the cluster.
Richard