At work, not at my car, easy question. Gauge size

What size are the original speedometer and tach in my '67 BGT?

4" in diameter. I just happen to have one sitting next to my computer. RAY

Great, thanks Ray!

You're more than welcome. RAY

Ahh....careful there. 4" = 100mm. Size of the late model gauges. Came out in '77 with the new dash design.

Early cars use 80mm or ~3 1/8".

Nope. Disagree. I just measured an old, early 70's padded dash I have. 80 mm speedo and tach.

I installed a Mark IV dash in one car and ordered 100mm gauges for that one. I've got an old metal dash speedo and tach as well. 80mm.

Grab a dash and have a look.

In case you don't believe me, "Original MGB", page 150, middle column paragraph under "Start of 1977 model year": "4in speedometer and tachometer on LHD cars, still 80mm on RHD cars".

My 1969 measures 3-1/8" My tach needs a trip to Nisonger.

Poor guy asks a simple question and starts a fight! Kinda like the old Lite Beer commercial where on guy sits down between two others and has them fighting with each other in about 15 seconds. Was that Conrad Dobler??

63-67 = 100mm
68-76 = 80mm
77-80 = 100mm

jeez you guys..........

X2 Lloyd... and for the record, I went out to my '67 and got 4" across the bezel. :)

This used to be a discussion forum so I thought we were discussing gauge sizes. I learned something new today in that the early gauges were 100mm. Thought they were all 80 until the late cars.

If I see something I think is in error, I'll post about it. If I'm mistaken, I stand corrected.