[knomadd]

I've read (can't remember where since it's been so long ago) that there are different heights being sold as the same drop by different manufacturers. It would be like brand X selling a 5" drop spring that sits a bit higher than a brand Y spring. So just because you have a 5" drop spring, it's not necessarily going to be the same as the other guy's 5" drop spring.

Also, keep in mind that suspension settles over time, so a 5" drop spring that's been installed for a few years will be lower than a brand new 5" drop spring from the same company. It could be one manufacturer says the spring is a 5" drop when it's brand new (ultimately ending up with more drop) or the other guys say their spring is a 5" drop after the suspension settles in (starts out less than 5").