The CJ3A Page CJ3B.info

Author Topic: Dana 18 speedo drive gear removal  (Read 3070 times)

0 Members and 1 Guest are viewing this topic.

Offline Tucker

  • Project Jeep (Newbie)
  • *
  • Posts: 39
  • Karma: +0/-0
  • My Jeeps tricked me into thinking I'm a mechanic.
    • View Profile
Dana 18 speedo drive gear removal
« on: November 13, 2013, 10:05:38 PM »
I've torn down my 18 for new bearings and seals, but I cannot get the speedo drive gear off the input shaft.  I was led to believe by my research that it would slide off with just a bit of a bump, but no go.

Any suggestions?  Something I could soak it in?  There's no obvious rust or anything, so I'm somewhat stumped.
1988 Grand Wagoneer, built up for wheeling.
1951 CJ3A,  STREET LEGAL and RUNNING!� Here's my blog build up: http://jeep-cj-x.blogspot.com (needs updating)

Offline SteveW

  • Willys Guru
  • ****
  • Posts: 457
  • Karma: +0/-0
  • Still Plays With Jeeps
    • View Profile
Re: Dana 18 speedo drive gear removal
« Reply #1 on: November 13, 2013, 10:24:21 PM »
Here is best guide for rebuild

http://www.willystech.com/wt/Model18TCase/Model18TransferCase.html


should just unbolt sleeve and slide off D28 on guide


Can you rock the yoke a bit and see if the gears will unmesh a bit while working drive off?
« Last Edit: November 13, 2013, 10:27:35 PM by Googly_Moogly »
1950 CJ3A finished. 1950 CJ3A in pieces. 1947 Bantam T3-C trailer, 1946 Cushman Scooter 50 series

Offline Quebec Jeep

  • SMF Administrator
  • Flatfender Master
  • *****
  • Posts: 1193
  • Karma: +0/-0
  • CJ-3A 1950
    • View Profile
I'm jeepcoholic!

Offline Tucker

  • Project Jeep (Newbie)
  • *
  • Posts: 39
  • Karma: +0/-0
  • My Jeeps tricked me into thinking I'm a mechanic.
    • View Profile
Re: Dana 18 speedo drive gear removal
« Reply #3 on: November 14, 2013, 11:42:24 AM »
Yeah, I've read through all those threads already.  But each just says slide the speedo drive gear on or off, as if it's supposed to be that easy--which I'm sure it is supposed to be, but it ain't for me.

I was hoping someone else on here had once had a stuck speedo drive gear and discovered some kind of magic potion or juju incantation that helps it slide off.
1988 Grand Wagoneer, built up for wheeling.
1951 CJ3A,  STREET LEGAL and RUNNING!� Here's my blog build up: http://jeep-cj-x.blogspot.com (needs updating)

Offline Tucker

  • Project Jeep (Newbie)
  • *
  • Posts: 39
  • Karma: +0/-0
  • My Jeeps tricked me into thinking I'm a mechanic.
    • View Profile
Re: Dana 18 speedo drive gear removal
« Reply #4 on: January 02, 2014, 02:05:21 PM »
Quick update in case someone has this same problem in the future: I soaked the entire shaft in CLR for quite a while to dissolve some of the crud that may have built up, and then I used a gear puller to pull on the bearing, which helped slide the speedo gear off.

I've since rebuilt the transfer case, and I installed it a few days ago.  Life is good.
1988 Grand Wagoneer, built up for wheeling.
1951 CJ3A,  STREET LEGAL and RUNNING!� Here's my blog build up: http://jeep-cj-x.blogspot.com (needs updating)

Offline Ryan_M

  • Flatfender Master
  • *****
  • Posts: 1704
  • Karma: +0/-0
    • View Profile
Re: Dana 18 speedo drive gear removal
« Reply #5 on: January 02, 2014, 02:17:58 PM »
Was your TC unusually crudded up or rusted inside? I disassembled mine last night and the speedo gear just slid right off like it was supposed to.
Current:
'49 CJ3A
'51 CJ3A
'42 Willys MB-T
'47 Bantam T3-C
Previous:
'46 2A
'51 3A
'52 3A
'52 M38
'54 3B
East Coast Wi

Offline Tucker

  • Project Jeep (Newbie)
  • *
  • Posts: 39
  • Karma: +0/-0
  • My Jeeps tricked me into thinking I'm a mechanic.
    • View Profile
Re: Dana 18 speedo drive gear removal
« Reply #6 on: January 08, 2014, 01:31:54 PM »
No, it was fine.  I think it had just sat for a very long time and the crud had solidified between the gear and the shaft. The oil/water sludge in it, however, looked like, for lack of a better word, brown/yellow/green puke.  Fortunately, because it had a leak, the gears weren't sitting in much of that. 
1988 Grand Wagoneer, built up for wheeling.
1951 CJ3A,  STREET LEGAL and RUNNING!� Here's my blog build up: http://jeep-cj-x.blogspot.com (needs updating)