High speed rear axle

AA Ford Discussion Group relating to the repair and restoration of your AA Ford.
Rumbler
Posts: 42
Joined: May 21st, 2017, 4:27 pm
Body Type: 82-A Closed Cab
Model Year: 1928
Location: Illinois

Re: high speed rear ends

Post by Rumbler » January 20th, 2019, 5:10 pm

===============From Dave==========
"Just a suggestion, before you get too happy with this axle, look very carefully at the bottom of the surface where the wheel bearing rides on the housing. If it is damaged here, it could have also damaged the wheel bearing and hub bearing surface. "
==================================

Thanks, Dave I have inspected the bottom of the wheel bearing surface on the end of the axle and it also look very good...so I am fortunate! Pictures are attached...hard to take of a shiny surface; the surface is better that it looks in the pictures.

Brian
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Last edited by Rumbler on January 21st, 2019, 10:43 am, edited 1 time in total.

Rumbler
Posts: 42
Joined: May 21st, 2017, 4:27 pm
Body Type: 82-A Closed Cab
Model Year: 1928
Location: Illinois

Re: high speed rear ends

Post by Rumbler » January 20th, 2019, 5:15 pm

=============================
From Dave "1crosscut":
I think that you have a very early rear axle assembly. What does the speedometer housing on the drive shaft look like?
=============================

Dave-
My truck is an April 1928. Pictures of the speedometer housing attached.

Brian
Attachments
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Rumbler
Posts: 42
Joined: May 21st, 2017, 4:27 pm
Body Type: 82-A Closed Cab
Model Year: 1928
Location: Illinois

Re: high speed rear ends

Post by Rumbler » January 21st, 2019, 1:30 pm

dhetch wrote:
January 19th, 2019, 10:05 pm
Brian, I have never seen seals there. They are to be pushed through from the diff side out almost to the brake end of the housing. Use a piece of 1" pipe and a set of Harbor Freight seal installers and a good LED flashlight. First make sure you have the old seals out before you try to install the new ones. I use a AA4245 or a CR16118 seal and you might want to have a spare or two because it is easy to bend them until you have done a few.
Just a suggestion, before you get too happy with this axle, look very carefully at the bottom of the surface where the wheel bearing rides on the housing. If it is damaged here, it could have also damaged the wheel bearing and hub bearing surface. While it is apart, you might want to spin the axle shafts to check for straightness and matching lengths. FYI the 28 and 29 have different wheel bearing, hub bearing length, and axle shaft and housing lengths. Any of these worm gear axles I have run into use a CR27471 hub seal. This axle also requires a special gear lube which is explained on page 23 of the April 2017 Double A'er.
Dave
Dave, for some reason this thread has been split, maybe to free up Bud's original thread. Anyway, go to the top or bottom of the thread and over on the right side you can select the thread number. My response is in Thread #2.

Brian

Rumbler
Posts: 42
Joined: May 21st, 2017, 4:27 pm
Body Type: 82-A Closed Cab
Model Year: 1928
Location: Illinois

Re: high speed rear ends

Post by Rumbler » January 21st, 2019, 1:31 pm

1crosscut wrote:
January 20th, 2019, 4:50 pm
I think that you have a very early rear axle assembly. What does the speedometer housing on the drive shaft look like?
Dave, for some reason this thread has been split, maybe to free up Bud's original thread. Anyway, go to the top or bottom of the thread and over on the right side you can select the thread number. My response is in Thread #2.

Brian

Bob C
Posts: 1228
Joined: April 24th, 2003, 11:50 am
Body Type: Mail truck, Stake tr
Model Year: 1931
Location: SO CAL

Re: high speed rear ends

Post by Bob C » January 21st, 2019, 2:39 pm

Dave, for some reason this thread has been split, maybe to free up Bud's original thread. Anyway, go to the top or bottom of the thread and over on the right side you can select the thread number. My response is in Thread #2.

Brian


After 15 posts a new page is started.

Bob

Rumbler
Posts: 42
Joined: May 21st, 2017, 4:27 pm
Body Type: 82-A Closed Cab
Model Year: 1928
Location: Illinois

Re: High speed rear axle

Post by Rumbler » January 22nd, 2019, 8:58 am

I got the two inner seals out and here's a couple of photos of what they look like. I spoke with Snyders, who don't have a replacement but referred me to Tom of Model A Ford Works in Portland and he confirmed that it is a TT carryover. Apparently this seal wasn't used for very long in the AA (remember mine is an April 28). This one is missing the felt, but came out pretty easy and is in good shape. The other one didn't fare as well but I think it's still reusable. Tom is able to make some replacement felts for me. Dimensions of the can are 3 inches diameter x 3/4 inch deep.

Thanks for everyone's help on this puzzle.
Brian
Attachments
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2019-01-22 10.29.15.jpg
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1wonton
Posts: 131
Joined: August 31st, 2013, 4:37 pm
Body Type: Express
Model Year: 1929
Location: Vallejo, Ca

Re: High speed rear axle

Post by 1wonton » January 27th, 2019, 6:29 am

Make SURE you do not use any oil with EP additives when you fill the rear end otherwise you will destroy your bronze worm in just a few miles, (I know, I did it...........).

Rumbler
Posts: 42
Joined: May 21st, 2017, 4:27 pm
Body Type: 82-A Closed Cab
Model Year: 1928
Location: Illinois

Re: High speed rear axle

Post by Rumbler » January 27th, 2019, 9:21 am

Yep, thanks. I just received my order of the proper oil from Restoration Supply Co.

Brian

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