Transmission Part
 

Hey All

I have posted a pic of this before but I need 2 of these, not sure of the part number as the manual does not even show the part. The only number I found was 591341 on the part itself.

If anyone has one or preferably 2 please let me know.

Thanks
Gary

:note: :salute:

P.S.: The last picture is not from mine, I borrowed it to show the part I need.

Ring
 

Happy to see my picture being put to good use. Hard to find part, I bought a transmission to get one. Look at the last picture carefully because the lack of that little ring, which is not illustrated in the manual is what causes all that destruction. I wonder if there was ever an update or service bull item on this?

Here is where I got one.
 

Hi Gary

Here is where I got one last year, http://www.obschevy.com/ not list in their online catalog but they don't always list stuff they have only a few of.

So I would give them a call 1-800-248-8785 or 1-229-686-5812 tell them what you need.

This is the place I got the NOS 4 speed for my truck last summer. I need a real housing because wanted to put my original trans back together as a complete spare.

Cheers Phil

Part
 

Harry, thank you for your picture, it was the best one of the part I needed.
Phil, thank you for the link I will give them a call.

The only question now is what is the name of that part? LOL

Gary

Retainer, transmission rear bearing.
 

P/No from 1940 - 1941 Army Parts Catalogue DND Canada 096901

The above part was replaced by P/No 591341 some time prior to August 1943 at least on C60L but appears to be interchangeable.

Identification of the same part as used on the Chevrolet G-506 1-1/2 ton 4x4
Retainer, transmission rear bearing assembly, Stock Number G085-3202380, Chevrolet P/No 591166.

David

Awesome
 

Phil

I have said it before and I will say it again, YOU ROCK and are one of the most helpful people I have met. I called the company you suggested and was able to find the only 2 parts that they had and for a reasonable price, they are now on their way to me and I should have 2 working trannies.

Gary

So you cornered the market.....
 

Hi Gary

When you do get them....can you tell us if they are the aluminium or cast steel ones... The white metal ones were obviously more vulnerable to breaking.... also whether the speedo cable boss is machined or left blank.....?

Not sure which of the cast ones are the ones mention in David's email as a modification made during the war after poor results of the early civvy models used.

Make sure you use locking nuts and locktite on all the flange and U joint bolts.....like a belt with suspenders.

Last Summer I found some loose spring U bolt nuts and U joint bolts on the short drive shaft.

Current plans are to do an oil change/grease and leisurely roll under with the creeper to check every bolt nut I can see before driving it in the back field.


Cheers
Bob C.

Other than a loose bolt how do these get broken
 

Hi Guys

I have never quite understood why these parts had to be beefed up. Other than having one of the flange bolts get loose and hitting of the mounting bolts what could break them.

Basically all this rear cover does is seal the bearings, hold the seal for the drive flange and hold the speedometer gears.

As the speedometer take off is not used on the CMP you will need to find or make plugs for the holes.

Below is a picture of two of different styles of end cap I've seen, also have seen the aluminum or pot metal.

Attachment 65735

Cheers Phil

Part
 

Hey Guys

So I got my parts in and have attached them below, something I thought was strange is that one has a 1 stamped on the front and back and the other has a 2 stamped both sides, anyone know why?

They are identical in every way and even have the same part number just the 1 and 2 are different.

Gary

Could be assembly line #
 

Casting line one and line 2.....???

Are they cast steel/iron or white metal....?

Are the speedo meter boss machined.... ?

Lucky find Gary.

Bob C

same butfor the numbers...?
 

Ive seen this done with metal-stamping dies that make several of the same part with one 'hit'. similar would apply with a pour or a die casting.

if a defect shows up in the manufacturing process(IE a flange repeatedly breaks off later..) then they know which pattern to repair.