I want to start using my 1965 Fender P bass but the neck is way too wide for me. Does a jazz neck fit without altering the bass?
It should fit just fine, but don't take any of the hardware off of the old bridge to put on the new one. Don't do anything that could possibly devalue the instrument, or keep it from being put back to original.
Depends on the neck. Some Jazz necks have more than 20 frets. It will physically fit, but without relocating the bridge, you will never be able to get the intonation right.
Well years ago when it was my only bass the orignal white finish got yellow so I stripped it down to bare wood and clear coated it. It was but away for years. Then I got the bright idea to strip it again and painted it. Then I wanted to beef up the sound so I added a J pickup and a new P pickup. Active pickup. I have all the orignal hardware but with a few new holes. It has not been used in 15 years but I'm thinking of getting it ready to use it again. I would think all my altering had killed any value it had.
There is a guy on this forum named Johnk_10 that could restore it, including getting rid of that J pickup. I think it would be worth it considering you still have all the original hardware. But yeah, if you want a Jazz neck, I would suggest picking up a MightyMite or Allparts neck and some new tuners. It will fit fine.
Thank you for your help. I have not made up my mind as to what I'm going to do. I do not really need the fender. I have thought about getting what I can for the P bass and investing what I get into equipment I need or just want. it does have some sentimental value for me. It was my first quality bass given to me by my parents. Again thank you for your help