What year did Ithaca put a disconnector in the 37?

Balog · March 9, 2011, 01:08 PM

And what would the S/N range for that change be?

jaguarxk120 · March 9, 2011, 03:14 PM

I have two that will not fire with the trigger held back --- 37147xxxx and 37153xxxxx both guns have a "disconnector".

The way Ithaca stopped the firing when the bolt was closed and trigger held back was to remove the second sear on the hammer. If the trigger is held back the hammer will follow the bolt forward as it closes.

The hammer was held back by the action release lever and released the hammer as the bolt came into battery. The release lever popped up preventing the bolt from moving back, at the sametime the hammer was released.

My serial number range indicates the guns were made in the first or second quarter of 1975.

Maybe someone has more information to add, I would also like to have more info.

Crosshair · March 9, 2011, 09:41 PM

The information I have found say the cutoff date is in 1973. I have two 37's that are pre-73 and one that is post. The pre models can pump-fire, the post can't.

jaguarxk120 · March 10, 2011, 09:55 AM

The serial number range for 1973 is 371287501 to 371366000.

The serial number range for 1974 is 371366001 to 371453500.

If you could find a older hammer with the sear stud on the right side, it can be fitted with no problem. The slide stop on my 1975 has the noch still there for engaging the hammer.

Balog · March 10, 2011, 12:25 PM

Great, this was exactly what I was looking for. Thanks

jaguarxk120 · March 10, 2011, 12:43 PM

Please note that the Model 37's are made with different frame sizes. Thus the 12 gauge is the largest and they get smaller with the gauge. That's one major reason for owning one as the 16 or 20 gauges make for one of the best handling upland game guns.

March 9, 2011, 01:08 PM	#1
Balog Senior Member Join Date: May 19, 2004 Posts: 259	What year did Ithaca put a disconnector in the 37? And what would the S/N range for that change be?

March 9, 2011, 09:41 PM	#3
Crosshair Senior Member Join Date: December 16, 2004 Location: Grand Forks, ND Posts: 5,333	The information I have found say the cutoff date is in 1973. I have two 37's that are pre-73 and one that is post. The pre models can pump-fire, the post can't. __________________ I don't carry a gun to go looking for trouble, I carry a gun in case trouble finds me.

March 10, 2011, 09:55 AM	#4
jaguarxk120 Senior Member Join Date: February 28, 2008 Location: Michigan Posts: 2,620	The serial number range for 1973 is 371287501 to 371366000. The serial number range for 1974 is 371366001 to 371453500. If you could find a older hammer with the sear stud on the right side, it can be fitted with no problem. The slide stop on my 1975 has the noch still there for engaging the hammer. Last edited by jaguarxk120; March 10, 2011 at 12:39 PM.

March 9, 2011, 03:14 PM	#2
jaguarxk120 Senior Member Join Date: February 28, 2008 Location: Michigan Posts: 2,620	I have two that will not fire with the trigger held back --- 37147xxxx and 37153xxxxx both guns have a "disconnector". The way Ithaca stopped the firing when the bolt was closed and trigger held back was to remove the second sear on the hammer. If the trigger is held back the hammer will follow the bolt forward as it closes. The hammer was held back by the action release lever and released the hammer as the bolt came into battery. The release lever popped up preventing the bolt from moving back, at the sametime the hammer was released. My serial number range indicates the guns were made in the first or second quarter of 1975. Maybe someone has more information to add, I would also like to have more info.

March 10, 2011, 12:25 PM	#5
Balog Senior Member Join Date: May 19, 2004 Posts: 259	Great, this was exactly what I was looking for. Thanks

March 10, 2011, 12:43 PM	#6
jaguarxk120 Senior Member Join Date: February 28, 2008 Location: Michigan Posts: 2,620	Please note that the Model 37's are made with different frame sizes. Thus the 12 gauge is the largest and they get smaller with the gauge. That's one major reason for owning one as the 16 or 20 gauges make for one of the best handling upland game guns.