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Re: Leaking 49 Chevy truck
roberts49chevy #1308651 Fri Apr 26 2019 02:06 PM
Joined: Apr 2018
Posts: 90
R
Shop Shark
Ok I’ll try that. Just wondering since I’ll have the truck on a lift, is there any chance the drive shaft will drop down if I loosen it?

Re: Leaking 49 Chevy truck
1953 panel #1308770 Sun Apr 28 2019 01:48 AM
Joined: Jul 2013
Posts: 172
N
Shop Shark
Originally Posted by 1953 panel


A number of us here are more concerned if that joint stops leaking.

As in, no more leak means no more fluid in there...where did it go?
Probably into your diff which means you need an Okie job!


NHluvstruck...
1951 3100 5-window
https://stonefacegarage.wixsite.com/mysite
51 Chevy Restoration Page
Re: Leaking 49 Chevy truck
roberts49chevy #1308771 Sun Apr 28 2019 01:51 AM
Joined: Jul 2013
Posts: 172
N
Shop Shark
Originally Posted by roberts49chevy
Ok I’ll try that. Just wondering since I’ll have the truck on a lift, is there any chance the drive shaft will drop down if I loosen it?

No, the u-joint inside the ball housing keeps it together.


NHluvstruck...
1951 3100 5-window
https://stonefacegarage.wixsite.com/mysite
51 Chevy Restoration Page
Re: Leaking 49 Chevy truck
roberts49chevy #1308874 Mon Apr 29 2019 02:42 AM
Joined: Apr 2018
Posts: 90
R
Shop Shark
I was able to tighten a quarter of a turn.

Re: Leaking 49 Chevy truck
Nhluvstruck #1308875 Mon Apr 29 2019 02:48 AM
Joined: Apr 2018
Posts: 90
R
Shop Shark
What’s an okie job?

Re: Leaking 49 Chevy truck
roberts49chevy #1308876 Mon Apr 29 2019 03:08 AM
Joined: Sep 2001
Posts: 30,570
ace skiver
Originally Posted by roberts49chevy
What’s an okie job?

Cheap and dirty - git er done
(as per the poor depression-era Okie farmers (Grapes of Wrath) who had nothing and had to migrate from their worthless dust bowl farmland to poverty in California, etc.)


Tim
1954Advance-Design.com [1954advance-design.com]
1954 3106 Carryall Suburban [stovebolt.com] - part of the family for 49 years
1954 3104 5-window pickup w/Hydra-Matic [1954advance-design.com] - part of the family for 15 years
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engines are not "splash oilers" - this is a splash oiler. [chevy.oldcarmanualproject.com]
Re: Leaking 49 Chevy truck
roberts49chevy #1308915 Mon Apr 29 2019 01:51 PM
Joined: Aug 2018
Posts: 275
D
Shop Shark
Robert, in this case, an "Okie job" refers to installing an Okie bushing, apparently so called because it was patented in 1946 by T.C.Gerner of National Machine Works, Oklahoma City. The prior post by NH suggested that the reason the transmission fluid stopped leaking out of the ball housing was that all the fluid drained out and was no longer there, that it may have drained down the torque tube (potentially overfilling the rear axle housing).

In case you aren't familiar, the Okie bushing assembly includes two bushings and a seal. It completely replaces the forward torque tube bushing and provides an additional rear bushing and the seal that keeps transmission fluid in the ball housing where it belongs. The repair bushing assembly was developed to be an easier fix than what the shop manual called for at the time - disassembling the rear end and removing the driveshaft - to remove and replace the two stock torque tube bearings and seal. The Okie bushing can be inserted once the forward bushing is removed, with the driveshaft still in place and without disassembling the rear end. Fixes both worn torque tube bushings and bad seal in one operation. Still available in three variants for different model years, from various parts vendors (sometimes misspelled as Oakie Bushing). See the image...

I thought it was sort of cool to see the original patent, which is here: Okie Bushing US Patent 2,403,520

Attached Files
Okie Bushing.jpg (47.54 KB, 86 downloads)
Last edited by drdoug; Mon Apr 29 2019 01:58 PM.
Re: Leaking 49 Chevy truck
roberts49chevy #1308918 Mon Apr 29 2019 01:57 PM
Joined: Sep 2001
Posts: 30,570
ace skiver
https://www.classicparts.com/searchprods.asp

Search on: drive shaft bushing

A tool will also be displayed.
Maybe members will comment on the use/usefulness/necessity and ease-of-use of that installation tool?

photo of an original, packaged bushing


Tim
1954Advance-Design.com [1954advance-design.com]
1954 3106 Carryall Suburban [stovebolt.com] - part of the family for 49 years
1954 3104 5-window pickup w/Hydra-Matic [1954advance-design.com] - part of the family for 15 years
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engines are not "splash oilers" - this is a splash oiler. [chevy.oldcarmanualproject.com]
Re: Leaking 49 Chevy truck
roberts49chevy #1309028 Tue Apr 30 2019 12:59 PM
Joined: Jul 2013
Posts: 172
N
Shop Shark
Thanks Doug of elaborating on my cryptic reference as I was on a 1200 mile road trip.... It is exactly what I meant!
Replacing this bushing was the single most exasperating job in my entire restoration.
The cheap tool is marginal at best, and I destroyed one completely trying to remove my old seized bushing. After a few unsuccessful attempts at making my own tool, I ended up making a small relief cut in the torque tube, lots of heat and penetrant, and a new tool later was finally able to get it out. Welded and finished the torque tube and the new okie bush went right in.
Next time I'll probably follow the shop manual approach, and hammer it out with a long pipe from the diff end.


NHluvstruck...
1951 3100 5-window
https://stonefacegarage.wixsite.com/mysite
51 Chevy Restoration Page
Re: Leaking 49 Chevy truck
drdoug #1309039 Tue Apr 30 2019 02:55 PM
Joined: Apr 2018
Posts: 90
R
Shop Shark
Thanks Doug for a clear explanation of the seals and fix. Your response was terrific. The oil is still leaking despite my tightening the large flange nut.

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