Pulling Forum - Rearend oil

Rearend oil

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Topic: Rearend oil

Posted By: D21Puller
Subject: Rearend oil
Date Posted: 30 Nov 2012 at 9:09pm

After replacing all the bearings and seals in the rearend of the wc puller i was curious what some others use for oil and how much. Really see no reason to run the levels at factory spec, it goes 300 ft then back to the pits. Right now we have 1qt in the ring and pinion, 8oz in each bull gear and 1/2 quart in the step up trans. We are using amsoil 75w90 synthetic gear lube. Cant wait to hear some opinions!

Replies:

Posted By: wi50
Date Posted: 01 Dec 2012 at 2:07pm

I used mostly hyd. oil in mine. Too cheap to buy synthetic and didn't figure 80w-90 was needed. Look at how much protection the hyd oil offers in modern transmission and differential cases.

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"see what happens when you have no practical experience doing something...... you end up playing with calculators and looking stupid on the internet"

Posted By: mlpankey
Date Posted: 01 Dec 2012 at 3:06pm

I mix cheap motor oil and transmission fluid with a couple of packs of fhe posi traction additive

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people if they don't already know it you can't tell them. quote yogi berra

Posted By: WildBill
Date Posted: 01 Dec 2012 at 6:15pm

I run straight 10w making sure its light . i do run little over full and run Lucas additive for extra insurance . But your right 300 feet is not gonna break the trans oil down.

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Allis fan for life ! B,C,2-WC'S,WD45G,D19G,190xt ,LLSS 8010, terra tiger refurbished

Posted By: D21Puller
Date Posted: 02 Dec 2012 at 12:12am

Really had'nt thought about hyd. oil does make sense though. Just for curiositys sake i did put some lucas on the bull and its drive gear and turned it by hand with the cover off. Even by hand there was a very noticable increase in force to turn the gears with the lucas than without it. That stuff is super stringy and seemed to stay clung to the teeth very well.Fellow that runs our local speed shop was worried about the squishability of standard engine oil in a gear application. Getrag trans in my old nasty dodge uses engine oil with no troubles, and the load between a upper rod bearing and the rod itself has to be as excessive as some gears under load. Curious pankey why the traction additive, thought you only needed that for clutches in a limited slip application so the clutches were'nt too grabby while turning. Thanks for the answers

Posted By: Todd Domann
Date Posted: 02 Dec 2012 at 9:49am

D21Puller,

You are definitely using the right product in the AMSOIL 75W90 gear oil. The AMSOIL gear oil is formulated with extreme pressure additives to keep the oil from "squishing" and shearing under the extreme conditions of manual transmisssions, rear ends and differentials.

I became a dealer three years ago to get their racing oil for our pro stock pulling tractor, Hurricane Allis. We absolutely love the AMSOIL synthetic oils products and have it in almost everything we have from our daily drivers to farm equipment.

Please feel free to contact me if you have any questions.

Thank you, Todd Domann

mailto:tadomann@yahoo.com" rel="nofollow - tadomann@yahoo.com