Post by
IMH »
https://forums.nicoclub.com/imh-u110135.html
Wed Dec 31, 1969 5:00 pm
A 521 is easy. Not nearly as difficult as putting disc brakes on a 320 or 520. All you need is the entire assembly from a 79 620. Upper and lower links, tension rods, hubs, calipers, rotors, etc. You'll have to figure out how to adapt the 521 SAE lines to the metric openings on the calipers and you'll have metric wheel studs on the front but you can change those to mid 70s Mercury Capri V6 studs which are the correct size SAE to match with your rear SAE studs. I had that whole setup about 10 years ago until I realized it wouldn't fit on a 320 or 520. It's basically a bolt on for a 521 except for the SAE vs metric areas I mentioned and I did end up installing it on a friends 70 521.