Didn't feel like crawling under the car for the available hour today so I cleaned up and painted part of the brake booster. Maybe the motivation came from the set of Fiat 500 calipers I found... Yep, the calipers from the new 500 fit the old spider, only much better. Vented rotors and bigger caliper pistons. I mentioned in an earlier post that I already have the bigger brakes from an 85.5 spider but since I found these for such a good deal, I'm running with it! I will use the 85.5 brakes on my 1977 which will maintain a more stock engine.