Vintage Fender Jazzmaster and Jaguar guitars rely on a piece of foam under the pickups to adjust their heights. Over time, the original foam degrades, shrinks, and hardens to the point where adjustment isn't possible.
Proper pickup height is very important to the set up on any electric guitar but especially on vintage offset Fender electric guitars. If you've got a vintage Fender Jazzmaster or Jaguar from the 1958 through the 1970s then the foam has definitely hardened unless it has already been replaced.
Never fear! It's easy to replace that foam. Here's what you need: Fender Pickup Height Foam Replacement for Jazzmaster and Jaguar
Vintage pickguards are prone to significant shrinking over time which can make reinstalling the pickguard a difficult process. I recommend taking your guitar to a qualified to technician to have the foam replaced by a professional. I think you'll love the sound of your pickups once the height is adjusted properly!
I'm always a vintage Fender guitar buyer but I'm especially looking for vintage Fender offset guitars like the Jazzmaster and Jaguar. You can contact me here to sell a vintage Fender guitar.
If you're looking for help with Fender guitar dating then check out my blog post on How To Date A Vintage Fender Jazzmaster Guitar or How To Date A Vintage Fender Jaguar Guitar.