Garden Tractors - Allis Chalmers 616/620/720 Drop Box Oil

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Allis Chalmers 616/620/720 Drop Box Oil

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Garden Tractors
Forum Description: A great place to discuss the Simplicity and Allis Chalmers Garden Models
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=179659
Printed Date: 27 Apr 2024 at 1:00pm
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Topic: Allis Chalmers 616/620/720 Drop Box Oil

Posted By: coggonobrien
Subject: Allis Chalmers 616/620/720 Drop Box Oil
Date Posted: 07 Apr 2021 at 9:48am

What is the correct oil for the drop axle housings? Simple tractors said AC Gear Lube 715 0.5 quarts per side. Is this right? What's a modern equivalent?

Thanks

Replies:

Posted By: tadams(OH)
Date Posted: 07 Apr 2021 at 2:26pm

I put 80 - 90 weight in mine.

Posted By: Steve in NJ
Date Posted: 13 Apr 2021 at 12:02pm

I used 75-140 Vavoline synthetic gear oil in mine.

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39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife