New member with question

[Welborna]

Hello, I'm new to the forum. I have a 1977 Firebird Formula. I have a quick question. I am looking to put in replacement speedometer and tachometer in the dash. I don't want OEM gauges,I believe the original sizes are 3 3/8", but I just want to make sure before I order the new gauges. Can anyone confirm this is the correct size? Thanks for your help!

 

[92 Sunbird LE]

Buy this and save yourself some trouble.............

Work is done for you allready..............

http://www.classicdash.com/shopping/Pontiac/Firebird/1970-1981/Drilled/

Doug in P.R.