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Jun 23, 2024 - 9:50:22 AM
362 posts since 3/23/2011

Please help, a new issue has me scratching my head!!
Im looking to install a new 5 string neck on my Gibson 1926 Style 3 Banjo. It currently has an older conversion neck, unknown maker. For the new neck, I purchased new hanger bolts with the 8-32 threads to match the existing coordinator rods. Everything I read on BHO says these are the correct bolts for a 1926 Gibson.
Problem is, the new hanger bolts wont thread into the original coordinator rods. I went to the hardware store with the original parts to identify the thread type, but nothing matches!! I tried standard and metric sizes with no luck.
- The existing hanger bolts are very close to 8-32, and an 8-32 nut will thread on the existing hanger bolts, but loosely.
- The new 8-32 bolt is too large in diameter for the existing coordinator rod hardware. Wont catch a a first thread.
- A thread gauge indicates the 32 thread is correct, but as noted above the issue seems to be diameter. (8-32 is larger than the tap in the coordinator hardware).
- The current hanger bolts thread into the coordinator rods perfectly with no issues.

Has anyone every run into a similar issue on their 1926, or older, Gibson conversions?
Ive attached a photo of the coordinator rod hardware, do you experts think they indeed look original?

I just want to try a new neck and Im hoping to find hanger bolts that will match the banjo. It makes no sense to me that I cannot find matching bolt in the hardware store. What am I missing?

Any thoughts, info or help would be greatly appreciated!!!
Thank you,
Dan O'Keefe




Jun 23, 2024 - 10:20:20 AM

Bawheid

Scotland

151 posts since 3/20/2019

I had this issue on a 28’ Gibson and it was just the threads deforming a little over the years. I had to run a tap down the threads of the co-rods to straighten/clean them back out. The tap felt like it took just the slightest of material away, but went from the new bolts jamming to perfect fitting.

Edited by - Bawheid on 06/23/2024 10:22:39

Jun 23, 2024 - 10:23:29 AM

5470 posts since 11/20/2004

It seems there were also some with 6-32 lags. Try that size and verify before altering things.

Jun 23, 2024 - 10:40:12 AM

362 posts since 3/23/2011

Bobby - Definitely not 6-32. Tried it.

Bawheid - Interesting!! I can try tapping the parts, but Im afraid if I do the old hanger bolts wont fit anymore (although an 8-32 nut will thread loosely on them-hmm). My worry is if I dont like the new neck, I want to put the old back on. I may try this but want to be sure this is the issue before I re-tap the original parts. The threads look clean, and the issue is the same on both the upper and lower rods.

Edited by - healingbalm on 06/23/2024 10:41:51

Jun 23, 2024 - 10:57:15 AM
like this

120 posts since 9/1/2020

quote:
Originally posted by healingbalm

Bobby - Definitely not 6-32. Tried it.

Bawheid - Interesting!! I can try tapping the parts, but Im afraid if I do the old hanger bolts wont fit anymore (although an 8-32 nut will thread loosely on them-hmm). My worry is if I dont like the new neck, I want to put the old back on. I may try this but want to be sure this is the issue before I re-tap the original parts. The threads look clean, and the issue is the same on both the upper and lower rods.


Maybe use a set of after market coordinator rods with the new neck. That way you can reverse the whole deal without changing anything. 

Maybe not the most ideal scenario, but it'll let you try the new neck.

Jun 23, 2024 - 1:30:51 PM

heavy5

USA

3115 posts since 11/3/2016

We have so much activity on this subject I counted 10 pages on it in the forums .
Seems we should direct questions there ?

Jun 23, 2024 - 2:39:58 PM

120 posts since 9/1/2020

quote:
Originally posted by heavy5

We have so much activity on this subject I counted 10 pages on it in the forums .
Seems we should direct questions there ?


Seriously? 10 separate non-archived threads on this topic?

Or does "10 pages" mean something different? 

Sorry if I'm not understanding. This computer stuff is still a bit new to me.

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