Year One has got covers for 66-68 (part # RE87B or RE87W), and they look very similar to what I have got in my -69. Maybe they'll work in a -70 too? At $78 they are a bit pricey (rather expensive for a piece of plastic...), and it doesn't say if that's for one or for a pair. Most of the suppliers have much more than they list on their web sites or in the catalog, so it's a good idea to call and ask.