I just picked up 2 Ithaca 37s tonight, and need to know anything you can give me about them.  

How do I disassemble?
Any tricks or tips?

They appear to be pretty complicated to tear down, a lot more so than an 870.  

How do I get the barrel off?

Any info at all about them is greatly appreciated.

Nope, simple.  Easy, dependable, all steel, no aluminum or plastic pins, etc.

I was typing it all out when I remembered an online source for this stuff.

http://www.ithacagun.com/model37schematic.html  not what I remembered but it can help

I wouldn't say they're more complicated than an 870, but they have their own quirks.

Going by memory here.

To remove the barrel, you screw the magazine cap in towards the receiver, then the barrel turns 90* and pulls out.

IIRC, one screw retains the trigger assembly.

Take the barrel brace off the magazine tube, push the pin over on the bottom of the bolt and the forearm will slide off/out. The bolt should slide out.

The trigger group is a bit simpler than the 870's, but can be a bit tricky to get some pins out, I generally just hose it with some gun solvent and compressed air.

If you need more info I could tear mine apart and get some photos.

I actually like them better than the 870.  They were more solid.

The only malfunction I ever had was gummed oil under the shell stops that caused my magazine tube spring to empty the magazine out the bottom.  Clean and re oil and was all good again.

Rembember to open the action before you remove/install the barrel. Also, check to see if your 37 has a disconnector. WITH AN UNLOADED WEAPON, do so by pumping the action, pull the trigger and hold the trigger back after the hammer has dropped. While still  holding the trigger, pump the action one more time. If the hammer falls, it doesn't have a disconnector. If I recall correctly, the 37s made before 1987 didn't have one.

I used to have one of these. My Uncle gave it to me because his wife refused to have ANY guns in the house after their first-born.
It got stolen with a number of other weapons that I had in storage.
How hard are they to find? Mine didn't have the disconnect either. This is the bottom ejecting model,right?

I have one & love it.  Do a Google seearch for disassembly instructions.

I too came across an Ithaca Model 37. It was given by my Grandmother to my Grandfather on their wedding day. Here is what Ithaca said:

REF the serial number This Model 37 was made in 1953 the -4 means that it has a full choke. Here
> is some information on the model.
>
> Standard Grade Repeater Model 37
> Introduced in 1937 with a plain 12 gauge barrel, the Model 37 offered many
> barrel lengths from 26" to 32". It featured a walnut; hand checkered butt
> stock and forend. The frame was highly polished, on the right side a
> setter
> dog pointing at two pheasants starting to fly and on the left three ducks
> in
> flight over a marsh were engraved. Bill McGraw was the designer of this
> now
> famous engraving; he worked as an Ithaca engraver.
> The 16 gauge was added in 1938 in 26" 28" and 30" barrel lengths.
> 1939 introduced the 20 gauge gun, and also used the trademarked term
> "Featherlight" to refer to the 5 ¾ lb pump guns.
> The retail price of the Standard grade repeater in 1937 was $42.50, it
> increased to $56.70 by 1942.
> After WWII when commercial gun production resumed, the Standard Grade
> Repeater went through some changes. The first year of post war production
> guns had a combination of pre and post war parts. However, several post
> war
> changes took place as production stabilized. The hand checkered forend was
> replaced with a ring-turned machined forend. The pistol grip checkering
> was
> simplified to a pattern that only covered the sides. The mirror polish of
> the prewar receivers was eliminated; the top of the receiver was now
> matted.
> The screws holding the butt plate on were switched to Phillips head. After
> all these changes the retail price in 1954 was $91.16.
> In 1955, the product was changed again. There was no checkering at the
> pistol grip, no fluted comb, no grip cap and no magazine cap pin (these
> changes were the same for all Model 37s). The Standard grade along with
> many
> other grades gained the Raybar front sight. Changes reduced the price
> slightly but not for long. At the end of 1955 it cost $89.95, and in 1962
> it
> was back up to $97.95. In 1966 impressed checkering was added to the look
> of
> the gun.
>
> The General Recreation Inc. bought Ithaca Gun Company in 1967 and brought
> about a few changes.
> In 1968 the finger grooved forend from the Deluxe Grade was added to the
> Standard Grade. Also added was the black plastic pistol grip cap with
> "Ithaca" wrote on it. Butt stock dimensions were changed. The retail price
> for 1968 was $109.95 with additional stock configurations for an
> additional
> cost.
> 1970, a full round, beavertail forend with an impressed checkered pattern
> replaced the finger grooved forend. Also the pistol grip had impressed
> checkering Both patterns were the same as the Model 37 Deluxe Grade.
> 1973 changes included; instead of using the smooth lustrous Duco laquer
> finish a matte or "egg shell" finish was applied. Also the stock
> dimensions
> were changed slightly, but the pull remained 14". The most significant
> change of 1973 is that it was the last year the 16 gauge was offered.
> Sales
> for the 16 gauge had been steadily declining, and it would have cost the
> company $47,500 to update the manufacturing processes, tools and fixtures
> to
> incorporate all the changes made to the model.
> 1974 introduced a new impressed checkering design. The new design more
> closely resembled the hand checkering techniques of the past, using a
> positive diamond design and a surrounding border.
> A new high gloss finish was used in 1978 on the forend and butt stock.
> In 1976/77 a new forend tube design was adopted that replaced the rear
> thread and nut with a flange. This simplified design helped lower
> production
> costs. Also the new design moved the forend up about 1 ¼" covering the
> yolk,
> which prior to 1978 was visible.
> The Model 37 Standard Grade was removed from the product line in 1983 at a
> price of $345.
>
> We have manuals for the Model 37, they basically go over the break down of
> the gun; the cost is $10.
> Also for the technical repair please call and speak to Zak our parts and
> service manager at 419-294-4113 or at 1-877-648-4222.
>
>
>
> Thank you for your interest in Ithaca Guns.
> Sincerely,
> Emily Alspach
> Ithaca Gun Company
> 420 North Warpole Street
> Upper Sandusky, OH 43351

Here's a PDF of the Ithaca manual

I have a couple Ithacas.
Do you know how old your NEW Ithacas are?
If you go to Ithaca site
I called them they told me the date my Ithacas where made.
Ithaca is lite weight!
Mine have NO disconnect, pull the triger once, keeping pumping.
Shots till your out of amm.

To take the barrel off you need to open the  receiver, then  screw the magazine cap.
That is what I always like about the shotgun, you could get the barral off so easily.
Hope you like you NEW shotguns. How about some pictures?

PITA45

pita,

those are some nice ithacas you have.  Mine were made in 1949 and 1951.  I did get the barrels off of them and get them cleaned up a little, but I didn't have the correct tools to do a further disassembly at this time.  I figure I will do that tonight.

Mine also do not have a disconnect, which is why I always wanted one.  I really like the way they feel.  I had never really had the chance to handle one before I bought these, but I believe my 870s are going to be gathering a lot of dust.

Mine are dated about the same.
One was not pictured, my sister has it for a HD.
Only a five shot.
I have alway like the Ithaca. My Dad had one.
My brother got that one.
Any way, What did you pay for yours?
Most of mine where under or just over $100.00.
Have you been to the Ithaca web page?
They where vary helpful!
So what about pictures!!!!!
Make sure when you shoot your Ithaca,
You do not short stroke the pump!!!
This can happen to any pump,
but I have heard it a lot from new Ithaca shotters.
If you were wondering I have shot slugs as well as 00 buck
through all of my Ithacas. I have shot steel plates clay birds.
As well as I took all my deer with the one with mounts on it.
Good Luck!!!

PITA45