Does anyone know if there is a GPS analog speedometer available in a 4" diameter and 120 MPH. My current speedometer is 4" 80 MPH liquid filled Gaffrig, it appears that the GPS units from Livorsi and Gaffrig either are 3 3/8" or 4 5/8". My current cluster space in my 38' Fountain won't allow for the larger diameter speedometer. I really wanted to go to a GPS analog for accuracy and to also avoid drilling holes in the transom.

Tom

Post this under the "GENERAL Q & A" section...you'll get more responses sir.

Not too sure if you ever go an answer but, they sell an oversized trim ring just for that reason.
I had the 4" liquid filled and did not have the space to go to the larger gage, so I purchased the 3 3/8 and an OS trim ring!

Good luck.

Scott

Just as Scarab said. I think your only option is the 3 3/8" and use the adaptor bezel. Thats what I had to do on my old Fever.