Farm Equipment - 170 Differential carrier seal replacement

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170 Differential carrier seal replacement

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=134439
Printed Date: 08 Nov 2025 at 3:07am
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Topic: 170 Differential carrier seal replacement

Posted By: Farmer Tom NJ
Subject: 170 Differential carrier seal replacement
Date Posted: 30 Jan 2017 at 9:22am

Hi,

I'm in the middle of doing brakes on my '71 170 and was wondering if the oil seal in the differential bearing carrier can be replaced by removing the bolts holding the carrier into the housing, sliding the carrier out, replacing the seal and then reinstalling the carrier? The manual I have directs you to remove both final drives (I am doing the brakes one side at a time) and the 3pt rockshaft housing to disassemble the diff. Since I am not removing the differential can I take one carrier out at a time to replace the o-ring and oil seal?

Tom J

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1955 WD-45, 1971 170 Landhandler, 1948 Farmall Super A, 1965 IH B275 Diesel, 1975 IH 666 Gas, 1969 Case 580CK Backhoe

Replies:

Posted By: Don(MO)
Date Posted: 30 Jan 2017 at 9:44am

Yes you can replace one seal at a time, I'd replace the O-ring on the bearing carrier too.

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3 WD45's with power steering,G,D15 fork lift,D19, W-Speed Patrol, "A" Gleaner with a 330 corn head,"66" combine,roto-baler, and lots of Snap Coupler implements to make them work for their keep.

Posted By: nickia
Date Posted: 30 Jan 2017 at 9:45am

hello i did my wd 45 and i want to say yes you can just remember to put the seal in right direction and the correct number of shims back under the carrier? Nick