I don't think you will fit 5" Gauges but its worth asking. My speedo & Tach are both 4.5", Boost is 2 5/16. The other six are 2 1/16. I found out after I ordered the dash that Speed Hut has not built the 4.5" Speedo's yet. I am on a list and they are supposed to email me early in January when they are available to purchase.