I'd like to use some of my old o27 postwar cars on my new FasTrack layout. However, some of the couplers a broken. I am not the kind of person that can take apart a coupler and change one small piece of it.
I have seen that you can buy a combination assembly of wheels and coupler for about $10 ( actually, $20 or so for a package of two). Are these easy to install? Is it as simple as popping out the old assembly and popping in the new? I'd rather salvage my old cars then buy new ones. Any advice and or links are much appreciated. Thanks!