29 AA rear end

AA Ford Discussion Group relating to the repair and restoration of your AA Ford.
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Posts: 15
Joined: September 18th, 2009, 6:08 am
Body Type: Grain side
Model Year: 1929

29 AA rear end

Post by blehigh » December 9th, 2013, 7:39 am

I have just finished restoring a late 29 chassis. My questions are: 1. What is the fluid capacity of the rear end? 2. Will 120 weight oil work? and 3. I was told that a 50-50 mix of 90 weight and Casiite will work. Any truth to that? Thanks, boblehigh@yahoo.com

Posts: 112
Joined: November 9th, 2009, 9:22 pm
Body Type: 185-A
Model Year: 1930

Re: 29 AA rear end

Post by Bladehorse » December 9th, 2013, 10:14 am

not sure the cap, but any modern gear oil will work, as there are a lot of additives they didnt have for the old thick viscus oils. I would not use the lighter oils in the trannies. They tend to 'pump' the oil out of the top of the shift tower, and the gears tend to not want to find their place as easy as with the correct weight oil in them.(They dont slow down fast enough to make a shift.)

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Brian T
Posts: 400
Joined: December 27th, 2008, 9:57 am
Body Type: 82A
Model Year: 1929
Location: San Diego

Re: 29 AA rear end

Post by Brian T » December 9th, 2013, 1:41 pm

As Bladehorse states modern gear oil will work, but be sure it is for use with yellow metals, this will lengthen the life of the ring gear whatever is left of it, I believe 2 quarts will do it, maybe three for topping up latter.
Nothing can be made fool proof, fools are ingenious bastards.

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Joined: June 14th, 2007, 7:29 pm
Body Type: Grainbox
Model Year: 1929
Location: Illinois

Re: 29 AA rear end

Post by Stakebed » December 9th, 2013, 2:18 pm

i thought someone mentioned that the 600W stuff was equivalent to 145weight oil.

if you have a farm supply store around they usually have a wide selection of thicker stuff.

Posts: 136
Joined: August 31st, 2013, 4:37 pm
Body Type: Express
Model Year: 1929
Location: Vallejo, Ca

Re: 29 AA rear end

Post by 1wonton » December 10th, 2013, 7:33 am

Use 90-140 wt gear oil and add a can of STP.

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gunmetal 2
Posts: 213
Joined: April 1st, 2013, 12:51 pm
Body Type: 82-A
Model Year: 1929

Re: 29 AA rear end

Post by gunmetal 2 » December 10th, 2013, 8:46 pm

Hi Bob,
havn't herd from you and a lone time. I am the person in northern Indiana Terry Rose. you came to see my truck. I call you and see what been going on with you. Im doing good but it sure is cold. LOL

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