Re: Front Coil Springs vs Coil Over's HELP
The only real benefits are light weight, spring choices, and adjustability.
In my experience, long term durability is not an issue. I would agree that a stock spring has the potential of lasting longer, but a good quality 3" spring will last for tens of thousands of miles. We have many customers with 20,000 miles plus on their cars. Art himself has over 5,000 on his '55, and it's even jumped over railroad tracks Dukes of Hazzard style. I wouldn't worry about it.
Lead Mechanical Engineer
Art Morrison Ent. Inc.