BUMP... plus info update.
In most cases when using LED's (not just my led's, but led's in general) in your turn signal sockets, you may experience the dreaded hyper-flash. This happens because of the much lower resistance of the LED's as compared with the incandescent bulbs.
The quick & easy remedy for this as well as for other LED or turn signal related issues is to upgrade the stock flasher to an EP-27 Electronic Flasher.
They should work with 95+ rangers and only take a few minutes to install. Simply locate the stock flasher under the dash or in the side panels depending on your truck, unplug the old flasher & plug in the EP-27 flasher. Finished.
Newer rangers will use a different flasher relay... I forget the number at the moment, but it's NOT the ep27.
They can be found online (evilBay) or at most auto parts stores for $12 - $16 and they all have basically the same internal components. I can't say that the expensive ones work better than the cheap ones, but I got mine on evilBay from a guy who bought the wrong one for his vehicle, it came from NAPA. I do know of a few other forum members who have got them from various evilBay sellers & have had no issues.