I put these pickups in a Greco Gold Top and the guitar came alive! The pickups were shot and I bought the guitar on a whim as I have Gibson custom shop Les Paul's and have a Gibson with the P-90's but didn't want to spend another $5,000 on a '57. So, I bought the Greco and it needed to be perked up which it has as I also put in the drop in wiring harness which made it easy peasy. I have more stuff on order and can't wait to get my grubby mitts on them and put them in other guitars. Thanks, Planet!