It WILL fit, you just have to pursuade it. IIRC, you tilt the bottom in first, then rotate the top in, pivoting on the bottom edge. I didn't want to grind mine, and I'd heard it would fit, so I was determined.
Personally, I didn't want to mangle my dash, so I just left the bottom screws out. But, otherwise, you'll have to bend those bottom tabs. The old speed nuts should work.
Thanks for your help on the ammeter issue BTW. I haven't hooked mine up yet, I have a bunch of other electrical issues to clean up first, but at least I know how.
Personally, I didn't want to mangle my dash, so I just left the bottom screws out. But, otherwise, you'll have to bend those bottom tabs. The old speed nuts should work.
Thanks for your help on the ammeter issue BTW. I haven't hooked mine up yet, I have a bunch of other electrical issues to clean up first, but at least I know how.