Farm Equipment - CA Final Drives

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CA Final Drives

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=154222
Printed Date: 20 Aug 2025 at 11:05pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: CA Final Drives

Posted By: 1955CA
Subject: CA Final Drives
Date Posted: 23 Sep 2018 at 10:59am

So how do you change the oil in the final drives on my 55 CA. I see there is no drains on the bottoms, so do I just take the whole pan off and drain them?

And then to fill....just fill up to the level of those side plugs?

Where is the best source to get new gaskets if I have to take the pans off?

Replies:

Posted By: HoughMade
Date Posted: 23 Sep 2018 at 11:05am

You have to take the sheetmetal cover off, empty and clean it, then bolt it back up with new gaskets or RTV and fill up to the fill hole.

I used RTV, but gaskets are available from several online tractor suppliers (Steiners, etc.) and on eBay. It’s the same for the B, C and CA.

It’s not a real pleasant job, but it’s not too hard.

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1951 B

Posted By: 1955CA
Date Posted: 23 Sep 2018 at 11:21am

OK thank you. I got all the manuals for it and looked at them last night. They tell you what fluids are in it and when to change them, but doesn't show you very clearly the location of any of the fill or drain plugs.

Just want to make sure I don't miss anything.

Posted By: HoughMade
Date Posted: 23 Sep 2018 at 11:25am

Yep. There’s a fill plug, but not a drain plug. Luckily, once you’ve change it out, assuming no leaks, it can go years and years.

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1951 B

Posted By: 1955CA
Date Posted: 23 Sep 2018 at 11:34am

Yes, I just got the tractor so I want to start fresh with everything and then I know what I've got.

I know the trans/hydraulic oil looks pretty milky right now.