Jazz Body with Precision Neck

[N. Kentucky Bass]

One of my worst ones that got away was a true vintage Fender J with a P neck I saw in a store & foolishly didn't nab. (Out of town visiting family, didn't have the money handy, didn't have an easy way to get it back home... all nonsense. That thing was cool as $#!& and not that expensive. I should have just gone for it. It haunts me to this day.)
It makes me wonder: with all those J necks on P bodies, what happened to the leftovers? Why don't we see P-neck J-basses more often?
I will say my J build with a J neck remains my personal Holy Grail for tone. It's not an authentic neck, though; it's an Allparts with a fairly thick profile and a nice full slab of rosewood.

The lack of Jazz basses with P necks is probably due to their owners being quite satisfied with the result! At least, I'd like to think so before plunging in. I'm sure there will be "no return accepted" attached with this sale!

 

[Mantis Tobaggan]

Even better: P bass neck with P bass body and P bass pickup.

 

[N. Kentucky Bass]

Even better: P bass neck with P bass body and P bass pickup.

Yup. I got one of those! But sometimes a song needs the sound of a J!

 

[Jefenator]

I know from experience that I am very partial to chunky necks, and a good set of J single coils. I don't know why it never occurred to me to go ahead & combine the two. (I guess I've been trying to adhere to tradition with my parts projects.)
I have had my '78 P neck on a bunch of different P bodies, but never a J body... yet!

 

[ximun]

Hello, I just played today with bodies and necks...

I am very happy so far with this 2012 CiC Squier CV60P neck on my 97 MiM J body.
This neck is my favorite with amazing rosewood and fretjob with delicious tiny vintage frets, not so wide (41mm maybe) at the nut and modern flat C profile. I always found my J neck to be to narrow and round.
I might change again one day but the J is my main player for its sound these days so I'm happy so far.

And I like to change the knobs often too...

 

[Matthew J Davis]

After all the "tinkering" with Basses I've done over the years, changing pickups, Bridges, necks, pots, strings, tuners what have you; and especially after my Warmoth build and my latest parts Bass, I finally found what the best combination is for the perfect Bass ... (well, at least what works for me), and that's a Jazz Bass body and a Precision Bass neck. I know a lot of guys are always like, (in a whinny voice ) "I want a Precision Bass with a Jazz neck", Phooey! A thick solid Precision neck (made with quality woods) sounds much better, much warmer, punchier and resonates better than any pencil thin Jazz Bass neck, trust me, I have 7 Jazz Basses, 2 Precision P/J Basses and 1 Jazz w/ a Precision neck and all the ones with the thicker necks just sound fuller and richer, they have a certain warmth to them that a Jazz Bass neck just doesn't have; you have a thin neck, you're going to have a thin(ner)sound/tone, that's just me speaking from my experiences. If you happen to have any spare parts laying around Jazz body and a Precision neck, Try It, You'll see what I mean. So that's what my next Warmoth build will be, then I'll sell off a few Basses that hardly get played anymore. Alright, I done with my rant, Let me have it, I don't mind, I can take it.

I just got a used American Jazz bass with an after market Fender replacement P bass neck. It came with lighter gauge flatwound strings. It is now the only bass guitar I ever use unless I am on a gig that requires thumb slapping (I use a Jazz bass with rounds for those). Since becoming an upright player about five years ago, I really prefer the neck of a P bass. The Jazz bass offers more sonic diversity than a P. I use the Jazz with P neck on a variety of gigs...... I use it in a straight ahead country band and everyone loves the tone. I also use it in a 60's Soul/RnB/Oldies band. Also, last summer I was getting arthitic pain in my right hand when I played my P basses....... it turns out it was the heavy gauge strings I was using! No more pain since I swithced to light gauge strings! I only paid $750 for this bass.

 

[Bigg Buttom]

I recently bought this parts bass. Seeing Fran Sheehan play a J with a P neck in old Boston videos and reading this entire thread got me interested in the design. I usually play P's. Always liked the J sound but never felt comfortable with the small neck profile. This is a 72 Jazz body with a 74 Precision neck and a Badass II bridge. The pickups, chrome cover and tug bar came from a 76 Jazz bass.

The sound is fatter than the other J's I've had, especially on the D and the G strings. Not sure if it's the neck mass, string spacing or something else, but there is a noticeable difference. It's the first Jazz bass I've played that didn't have me wishing it was a P by the end of the night.