Unless you are getting one jsut for looks, don't waste your time. I got one with backlighting (from Ebay, I think) it's a steel horse clinometer (no i) and installed it in the dash of my samurai, as shown in the picture below.
The problem is that the truck sees more extreme angles offroad than the gauge is capable of indicating. I was hoping I could use it to get a feel for when I might be in danger of rolling, etc, but it just pegs the indicator and I'm still nowhere near rolling.
My kids like to look at it, though, and it does fill in that space in the dash. I am going to yank it eventually when I put in ARBs and need somewhere to mount the switches.
~daxe
