I got this 4000 a couple months ago with the plan of making it a 4001S, and she's just about done!
A huge thanks goes out to John Allgaier for the wonderful wiring job, Tony C for the vintage style knobs, and Tony at Pickguardian for the new guard.
Please be advised: the integrity of the original 4000 was not harmed in any way. No new holes or routes were required.
I used the short pole toaster from my '71 because the front route was pretty shallow. John used 250K pots for volume and 500K's for the toaster tone, and then a new Rick Push/Pull for the bridge pu.
Versatile in the tone department is an understatement!
Before

After







