Vintage Mustangs are one of the most popular collectible cars in the world, and that means parts are readily available. Used, NOS (New Old Stock), and reproduction bits and pieces are widely obtainable to restore or generally improve just about any '65-'73 Mustang, from the most plain-Jane six-cylinder coupe on up to a K-code convertible, Boss 429, or Super Cobra Jet Mach 1.
And while the parts-availability picture is good, it seemingly gets better on a daily basis. A typical case in point are these quarter-window frames for '69-'70 fastbacks. Five years ago, you would have been hard pressed to find a set of these in good, used condition or as still-in-the-box NOS components. Now they're available as nicely finished reproductions from Virginia Classic Mustang, PN ER-5122.
Even more good news: They are relatively easy to install. Removing the glass is not a big deal, and with the informative instructions, removing the old frames and installing the new ones on the glass is also easier than we thought. Proper tools are key, and the two main things you need are the right-sized block of wood and a small propane torch to heat up the old frames.
We completed one side on our '69 fastback, with photos, in less than an hour, including removal of the rear-seat bottom and interior-trim panel to gain access to the two bolts that hold the glass in place.