My Willys 3A and 3B Community

3A, 3B, DJ Technical Knowledge Base => "Original"-- Technical Questions, Answers, Observations => Topic started by: athawk11 on October 29, 2013, 10:38:40 PM

Title: Willys Axles
Post by: athawk11 on October 29, 2013, 10:38:40 PM: Another Willys curiosity...

I have 2 1949 CJ3As.ï¿½ They both have the Dana 25 and 41 axle combinations.ï¿½ Whitey, the current project, has these perches above the spring mounts on both front and rear axles.ï¿½ ODie the green Willys, does not have them on either axle.ï¿½ I've seen a few axles lately.ï¿½ Most seem to have the perch.ï¿½

What are they there for? And why don't I have them on ODie?

(http://i1195.photobucket.com/albums/aa397/athawk11/athawk11%20Willys%20White/image_zps920b2cf6.jpg)
Title: Re: Willys Axles
Post by: Quebec Jeep on October 30, 2013, 01:45:57 AM: I have a Dana 41 on my 3A also but no perch like your.
Title: Re: Willys Axles
Post by: Bob W on October 30, 2013, 06:31:26 AM: The perches are where the rubber bump stops hit when the vehicle is bottomed out. Generally CJ-2As have the extra perch and CJ-3As don't. Of course you can't make any generalizations like that because there are always exceptions. I've gotta think they were eliminated to save money. Just like today, saving a few dollars on every vehicle really adds up. Tim, what are the assembly dates and/or ring gear dates on those axles?
Title: Re: Willys Axles
Post by: garage gnome on October 30, 2013, 07:12:48 AM: Ive only seen them on 2as also.
Title: Re: Willys Axles
Post by: SteveW on October 30, 2013, 07:17:13 AM: Neither of my 50's have them and they both have 41 rears
Title: Re: Willys Axles
Post by: athawk11 on October 30, 2013, 10:02:57 AM: Bob,
Iï¿½ll get the manufacture dates tonight.ï¿½ Not knowing for sure if the axles are original to these Willys, I can offer this;

The 41 and 25 that have the perches are on CJ3A #13655--a fairly early '49 3A.
ï¿½
The 41 and 25 without the perches ore onï¿½ ï¿½CJ3A #36662-- a fairly late '49 3A.

Tim
Title: Re: Willys Axles
Post by: PaulS on October 30, 2013, 04:35:26 PM: My early '49 3A (28833) has the perch on both axles.

-Paul
Title: Re: Willys Axles
Post by: athawk11 on October 30, 2013, 07:49:16 PM: Bob,
Dana 25 with Perch...Outside marking is tough to read. 1 24 48... Of course, the last digit is the hardest to make out, so not sure on the '8'. Same axle...ring gear... 1 12 49E

I can't make out any date markings on the exterior of the axle with no perch. Either too many coats of paint or no date marking at all. I am looking at the raised donut shaped area on the front of the axle. Is there another place to look without opening up the diff?

Tim
Title: Re: Willys Axles
Post by: Bob W on October 30, 2013, 08:59:01 PM: Quote
Bob,
Dana 25 with Perch...Outside marking is tough to read.ï¿½ 1 24 48... Of course, the last digit is the hardest to make out, so not sure on the '8'.ï¿½ ï¿½Same axle...ring gear...ï¿½ 1 12 49E

I can't make out any date markings on the exterior of theï¿½ axle with no perch.ï¿½ Either too many coats of paint or no date marking at all.ï¿½ I am looking at the raised donut shaped area on the front of the axle.ï¿½ Is there another place to look without opening up the diff?

Tim

The axle assembly date is probably 1 24 49 since it had to be assembled after the ring gear was made on 1 12 49.

At some point they began to put the axle assembly date on the tube instead of on the donut. Try looking at the area inside the circle in this photo...

(http://www.cj3a.info/tech/datecodeb.jpg)
Title: Re: Willys Axles
Post by: stony on October 30, 2013, 09:21:09 PM: My '49', #11159 has perches on both front and rear.