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  •  » FYI Ford, Classic Mustang Tech Discussion
  •  » How much gear oil in 65 8 inch rear after third member swap?

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    9/22/2023 8:46 PM  #1

    BILLY WALTON from GEORGIA
    Carrollton, GA Bash Host

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    From: CARROLLTON GEORGIA
    Registered: 4/14/2013
    Posts: 2,431

    How much gear oil in 65 8 inch rear after third member swap?

    I see some saying 3 or 4....I know till it runs out the hole ...just trying to get supplies up an have standing by.

    Its really me....I fixed my caps lock .
     

    9/22/2023 8:56 PM  #2

    Rudi
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    From: Stuck in the 50's Welland Ca
    Registered: 4/01/2013
    Posts: 3,960

    Re: How much gear oil in 65 8 inch rear after third member swap?

    Billy! Do you have a shop manual for your car. All of that info is in it.

    Good work ain't cheap, Cheap work ain't good!   Simple Man
     

    9/22/2023 11:17 PM  #3

    rpm
    Senior 24-7 FYI Addict

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    From: Bakersfield, Ca
    Registered: 9/17/2013
    Posts: 3,627

    Re: How much gear oil in 65 8 inch rear after third member swap?

    When I was a kid growing up I don't know how many times my parents said look it up when I asked a question. It's proven that you remember something more when you read it and see the words. So...

    Bob. 69 Mach 1, 393W, SMOD Toploader, Armstrong  steering, factory AC.
     

    9/23/2023 12:15 AM  #4

    BILLY WALTON from GEORGIA
    Carrollton, GA Bash Host

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    From: CARROLLTON GEORGIA
    Registered: 4/14/2013
    Posts: 2,431

    Re: How much gear oil in 65 8 inch rear after third member swap?

    This is exactly why some questions don't get asked on here...you know every question people ask could be answered by someone saying look it up ...I know how to look it up but for some reason I like hearing what the members here have to say and as long as we have members willing to just answer a question I will ask. This is why the page is got less traffic than it use too lately. I had a few message me and let me know they used 2.5 to 3 quarts ..I guess any question you could ever ask could be looked up so why ask anymore?
     

    Its really me....I fixed my caps lock .
       •Thread Starter
     

    9/23/2023 1:59 PM  #5

    TKOPerformance
    Hyper FYIFORD ADDICT

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    From: Newark, DE
    Registered: 12/15/2014
    Posts: 7,456

    Re: How much gear oil in 65 8 inch rear after third member swap?

    I would prepare for it to take 3 quarts.  Make sure you are on level ground, pull the fill plug and squeeze until oil runs out. 

     

    9/23/2023 3:44 PM  #6

    BobE
    Senior 24-7 FYI Addict

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    From: White Plains, NY
    Registered: 4/04/2013
    Posts: 2,616

    Re: How much gear oil in 65 8 inch rear after third member swap?

    The Ford 1966 Mustang Service Manual I have indicates 5 pints for an 8" rear, and 4.5 pints for a 9" rear.
    This does not include any fiction modifier that may be necessary if equipped with a locking differential.   

    65 Fastback, 351W, 5-speed, 4 wheel discs, 9" rear,  R&C Front End.
     

    9/23/2023 6:59 PM  #7

    Bullet Bob
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    From: Montrose, Colorado
    Registered: 4/01/2013
    Posts: 4,880

    Re: How much gear oil in 65 8 inch rear after third member swap?

    Like TKO says...pour it in 'til it runs out faster than you can pour it in.

    "you get what you pay for, good work isn't cheap, and there are NO free lunches...PERIOD!"
     

    9/23/2023 7:05 PM  #8

    BILLY WALTON from GEORGIA
    Carrollton, GA Bash Host

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    From: CARROLLTON GEORGIA
    Registered: 4/14/2013
    Posts: 2,431

    Re: How much gear oil in 65 8 inch rear after third member swap?

    TKOPerformance wrote:

    I would prepare for it to take 3 quarts.  Make sure you are on level ground, pull the fill plug and squeeze until oil runs out. 

    thanks I just bought a gallon of the valvoline it was cheaper than 3 of the quarts I have one of those pumps.

    Its really me....I fixed my caps lock .
       •Thread Starter
     

    9/23/2023 7:08 PM  #9

    BILLY WALTON from GEORGIA
    Carrollton, GA Bash Host

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    From: CARROLLTON GEORGIA
    Registered: 4/14/2013
    Posts: 2,431

    Re: How much gear oil in 65 8 inch rear after third member swap?

    BobE wrote:

    The Ford 1966 Mustang Service Manual I have indicates 5 pints for an 8" rear, and 4.5 pints for a 9" rear.
    This does not include any fiction modifier that may be necessary if equipped with a locking differential.   

    Yeah I have the Truetrac it dont require the friction aditive.
     

    Its really me....I fixed my caps lock .
       •Thread Starter
     

    9/23/2023 7:22 PM  #10

    BILLY WALTON from GEORGIA
    Carrollton, GA Bash Host

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    From: CARROLLTON GEORGIA
    Registered: 4/14/2013
    Posts: 2,431

    Re: How much gear oil in 65 8 inch rear after third member swap?

    Bullet Bob wrote:

    Like TKO says...pour it in 'til it runs out faster than you can pour it in.

    yeah I put some in before in another car but wasnt sure how much it would take. But a gallon jug of it was cheaper than 3 one quart containers....I have one of those pumps and had put a drain in housing when I  had the Mustangsteve rear disc brakes installed. 
     

    Its really me....I fixed my caps lock .
       •Thread Starter
     

     

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