1969 valiant with 13 inch wheels

The first thing you'll need to decide is if you're going to keep the bolt pattern you have now, or change it to one with more options. The stock pattern for a '69 model is one with a 4" diameter circle for the lug nuts/studs. There are kits available to keep that pattern, but, none that I know of can still use your 13" wheels. If it were me, I'd get a kit with the 4 1/2" bolt pattern and get whatever wheels you like (I'd go 15" at least, instead of 14") and what are appropriate for the brake kit you buy. For a daily driver, I wouldn't bother going with disc on the rear. Not necessary unless you're doing some serious repeated stopping, like hauling a trailer, or racing. You'll still need to do something in the rear if you want to have matching wheels however. You didn't say what engine you're running, but, I would still get a heavier duty rear end assembly with the bigger bolt pattern there too. If you just have a slant 6 or mild small block, I'd get a stock '73-6 Abody 8 1/4" rear axle assembly complete with the factory drum brakes. They bolt right in, they're not terribly expensive, they hold up well, and it's easy to get parts for them. You'll probably have to shorten your driveshaft a bit, but, just about any other rear end will require the same.