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Post Info TOPIC: Any way to drain some oil from rear axel without removing cover?
jim larson


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Any way to drain some oil from rear axel without removing cover?
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jim larson wrote:
Derek69SS wrote:

Pull the fill plug on the side of the diff. It should be full right up to the plug, so if there's too much in it, any extra will run out.

 I've heard to do this; but first you should run it until it is hot, then pull the plug.  Or do you mean it should be full when cold as it is 35 in the garage?  I thought it was 1/2" below the fill hole when cold.  As it was, when I pull the plug a little ran out; about 1 or 2 oz.

 Well I got out the old 66 service manual and found the information.  Level when hot, 1/2" below threads when cold.  Looks like I could have saved myself a little work by waiting for better weather, then driving the car a little to warm up the axle, and then pull the plug.  But how long do we have to wait for better weather?



-- Edited by jim larson on Tuesday 12th of March 2013 02:52:14 PM

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Jim L

Lake City
jim larson


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I think I may have a little to much oil in rear axel.  Whats the best way to get a little out? l Thanks.



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Jim L

Lake City
67ss


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Get a suction gun from auto parts store or probably walmart even. Stick the hose in the fill hole and suck out what you want.

 

http://www.autozone.com/autozone/accessories/Autotec-16-oz-suction-gun-with-12-in-flexible-hose/_/N-255s?itemIdentifier=142102 



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Chris P
East Central, Mn

66 Chevelle 300 deluxe
Derek69SS


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Pull the fill plug on the side of the diff. It should be full right up to the plug, so if there's too much in it, any extra will run out.



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Derek Kiefer - Mantorville, MN

69 Malibu Pro-Touring stroker LS1-383/T56 - 69 SS396-325/3spd project
jim larson


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Derek69SS wrote:

Pull the fill plug on the side of the diff. It should be full right up to the plug, so if there's too much in it, any extra will run out.

 I've heard to do this; but first you should run it until it is hot, then pull the plug.  Or do you mean it should be full when cold as it is 35 in the garage?  I thought it was 1/2" below the fill hole when cold.  As it was when I pull the plug a little ran out; about 1 or 2 oz.



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Jim L

Lake City
bowtie


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67ss wrote:

Get a suction gun from auto parts store or probably walmart even. Stick the hose in the fill hole and suck out what you want.

 

http://www.autozone.com/autozone/accessories/Autotec-16-oz-suction-gun-with-12-in-flexible-hose/_/N-255s?itemIdentifier=142102 

 I did a very quick blurb on this tool in the October 2010 Newsletter. It works well, we use them at the dealership.



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Bryan-NW 'burbs
1972 Malibu
Vaguely stock appearing, and the opposite of restored.
1999 std bore 5.7, Vortec heads, Holley Stealth Ram, GM cam
700R4, Viking coilovers, 12 bolt 4.10 posi, and a whole bunch more
Chris R


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Ive always filled up the diff until it trickles out and leave the plug out until the trickle nearly stops. Done it on thousands of vehicles with no problems. No need to be over thinking this.



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Chris - Ramsey, MN.

Dear Optimist, Pessimist, and Realist.

While you guys were busy arguing about the glass of water. I drank it!

Sincerly,

The opportunist.
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