Actually I have a couple questions. I have a 90' Camaro RS with the horrible 110mph speedo and would like to install a 145mph speedo. What years will work? Say I got the complete instrument panel from an 87', would that hook up with no mods? I know that some of the earlier models have an mechanical speedo and mine has an electric. Do they plug in the same?

 

90-92 will swap.
No.
Harness plugs may be the same, wiring is different.

 

ok cool thanks for the info. You just saved me some cash. Guess I'll have to keep looking.