As per my previous post, I'm going to strongly advise against placing generic LED fixtures behind your dash. I read the Ebay ad. First falsehood, the add allows you to infer these are a Ford product--indeed they are NOT. Second falsehood, they most definitely WILL NOT DIM WITH YOUR ANALOG DIMMER. This is an outright fiction. A bit more technical. The base of the bulb, although it appears to duplicate the correct 1895 base, is fitted with its own driver. Our sockets are equipped with a CVR which may or may not deliver consistent voltage to the drivers, leaving you with potentially intermittent lighting. You're on your own to troubleshoot. As a class, LEDs are famously vulnerable to temperature; it's the driver that usually fails. Our light case is enclosed and heat builds up. I'll bet a dime they will burn our long before an incandescent bulb would. I don't see any stated life expectancy for them, and doubt the importer would stand behind them (as hinted at by the Please make sure this is your style bulb before purchasing. disclaimer in the add.
Personally, I think the color temperature is hideous; the outcome is different than what these products promise. It will contrast badly with other lights in your suite, unless you change all those too. And, if you're thinking of doing that, some of them have different bases, so other LEDs would be needed. Considering how much work is involved with changing bulbs, I would recommend the following: Replace all your old bulbs with brand new 1895s. You'll be surprised how much brighter they are and will spend way less, and have a more correct and dignified appearance fitting the character of the Thunderbird. If you still just have to see, order one and put it in the glove box. But, speaking from professional experience, these cheapo LED products, and the market is flooded with them, are inconsistent, unreliable and do not compare.
Generally avoid being this vocal, but when I could save someone a disappointment, I'll do it. Sincere best of luck,
PS Modified forum guys may have more experimentation to draw from. Keep in mind, the motivation is different.
"Beer, now there's a temporary solution!" ~Homer Simpson
'64 Landau T-bird. Say hi to Ginger, folks.