Forum Home Forum Home > CJ-2A Discussion Area > Tech Questions and Answers
  New Posts New Posts RSS Feed - axle bushings: D25 vs. D27
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

axle bushings: D25 vs. D27

 Post Reply Post Reply
Author
Message
WRMorrison View Drop Down
Member
Member
Avatar

Joined: 28 Jan. 2006
Location: Mesa, AZ
Status: Offline
Points: 421
Post Options Post Options   Thanks (0) Thanks(0)   Quote WRMorrison Quote  Post ReplyReply Direct Link To This Post Topic: axle bushings: D25 vs. D27
    Posted: 07 May 2013 at 12:59pm
OK...when I bought my project, the front axle had a long shaft from a D27 (spicer joint) and a short shaft (bendix joint) from a D25.  I bought a short shaft from a D27 with a spicer joint so that both front axle shafts will match and be easier to service with the spicer joints.

I haven't fully buttoned up my front axle yet because I'm waiting on some new king pin bearings, but I did mock it all up.  I noticed that my shafts are pretty sloppy in the housing nearest the knuckle.  On closer inspection, I noticed that the original short side bendix shaft has a machined diameter near the joint that closely matches the diameter of the bushing in the housing...but neither of the newer shafts with the spicer joints have this machined diameter; they're rough-cast.

Will it be harmful to run these new shafts since the axle isn't nearly as supported or sealed by the bushing?  How in the world would I "fix" this situation?  Even if I found a smaller diameter bushing to press into the axle housing, the shafts themselves would still have to be turned I imagine to match the bushing.

Anybody run into this before?  Here's some pics of what I'm talking about:

Here's the original short-side shaft with the bendix joint; you can see the machined diameter that rests on the axle bushing:

Here's the long-side shaft with spicer joint that came inside my front axle - rough cast in the same location:

Here's the replacement short-side shaft with spicer joint: rough-cast in the same location:

-WRM
If you're a SolidWorks user, here's a link to my publicly available models: My Models (click on "projects")
Back to Top
smfulle View Drop Down
Member
Member
Avatar
Sponsor Member

Joined: 16 Sep. 2010
Location: Ogden, Utah
Status: Online
Points: 4938
Post Options Post Options   Thanks (0) Thanks(0)   Quote smfulle Quote  Post ReplyReply Direct Link To This Post Posted: 07 May 2013 at 1:21pm
Sean gives some explaination of axle types, bushings and shims required in this thread.
Stan
48 CJ2A (Grampa's Jeep)
59 Chevy 1/2 ton
Grampa's Jeep Build Thread
Back to Top
WRMorrison View Drop Down
Member
Member
Avatar

Joined: 28 Jan. 2006
Location: Mesa, AZ
Status: Offline
Points: 421
Post Options Post Options   Thanks (0) Thanks(0)   Quote WRMorrison Quote  Post ReplyReply Direct Link To This Post Posted: 07 May 2013 at 1:39pm
Originally posted by smfulle smfulle wrote:

Sean gives some explaination of axle types, bushings and shims required in this thread.

Thanks for that!  I never saw that FAQ...

Now I'm off to locate some new spindle bushings (A2 p/n 649783) and some snap rings.  But what I didn't see covered is; while "B" and "C" bushings were only really needed for bendix joints, won't the excessive bore diameter allow the pudding to seep into the axle tube?

-WRM


Edited by WRMorrison - 07 May 2013 at 1:41pm
If you're a SolidWorks user, here's a link to my publicly available models: My Models (click on "projects")
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.03
Copyright ©2001-2019 Web Wiz Ltd.