youd have to drill and tap say the water pump to use the 1/8" style
sender. no there isnt a "done fix" for this. in 1998, the f-body had a
three wire setup, two for PCM, one for dash... again the large
15mm x 1.5 size. im not sure you have that kinda room on the later
heads to drill and tap..
i opted for the 2003 cluster to match the op, ct from the PCM serial data.

airdeano