1928 rear ratio
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- Posts: 753
- Joined: August 11th, 2013, 4:25 pm
- Body Type: 82-A Platform
- Model Year: 1928
- Location: Hamilton, Mich.
1928 rear ratio
Was the '28 AA available with both the low and high speed worm drive rear end? I have a low speed in the truck now and want to know if it is "proper" to put in the higher speed ratio.
Thanks in advance for your input.
KVO
Thanks in advance for your input.
KVO
KVO
Dec. '28 AA
Dec. '28 AA
- 1crosscut
- Posts: 877
- Joined: December 25th, 2010, 7:22 pm
- Body Type: 82-A
- Model Year: 1929
- Location: Lincoln, NE
Re: 1928 rear ratio
I belive that the very early 28's came with high speed gears only. Later in 28 they came out with the low speed as an option. So yes you would be fine putting a high speed in.
Maybe I have it all assbackwards. Either way you can put high speed gears into the low speed rear end and no one would ever be able to tell unless they decide to race you.
Maybe I have it all assbackwards. Either way you can put high speed gears into the low speed rear end and no one would ever be able to tell unless they decide to race you.
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Dave
Dave
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- Posts: 753
- Joined: August 11th, 2013, 4:25 pm
- Body Type: 82-A Platform
- Model Year: 1928
- Location: Hamilton, Mich.
Re: 1928 rear ratio
1crosscut wrote:I belive that the very early 28's came with high speed gears only. Later in 28 they came out with the low speed as an option. So yes you would be fine putting a high speed in.
Maybe I have it all assbackwards. Either way you can put high speed gears into the low speed rear end and no one would ever be able to tell unless they decide to race you.
Yup. I know, found out that the parts will fit, and that no one would know, but I want to have is as original as possible. Just as it would have come, or could have come from the
factory. I should look for a housing with the proper "B" stamped on it, but that will come latter. Thanks for your input. I'm still looking for more.
KVO
KVO
Dec. '28 AA
Dec. '28 AA
- 1crosscut
- Posts: 877
- Joined: December 25th, 2010, 7:22 pm
- Body Type: 82-A
- Model Year: 1929
- Location: Lincoln, NE
Re: 1928 rear ratio
The earliest rear ends did not have a letter stamped on the differential. Only after the low speed came out as an option did they start stamping them with A's and B's. If you find a high speed rear end without a stamping it would not technically be correct for your truck either.
Good luck on your search.
Good luck on your search.
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Dave
Dave
- Brady
- Posts: 361
- Joined: October 21st, 2003, 1:38 pm
- Body Type: None
- Model Year: 1930
- Location: Norwich, NY 13815
Re: 1928 rear ratio
Crosscut: I have an AA worm drive that has "TT" embossed on the left housing. Neil says these are early '28. and have the TT gear ratio.
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- Posts: 157
- Joined: August 31st, 2013, 4:37 pm
- Body Type: Express
- Model Year: 1929
- Location: Vallejo, Ca
Re: 1928 rear ratio
The early (high speed) rear axles have no emergency brake levers.
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- Posts: 474
- Joined: September 24th, 2009, 3:06 pm
- Body Type: Express
- Model Year: 1928
- Location: NE Illinois
Re: 1928 rear ratio
That's good to know as mine doesn't have any markings and doesn't have emergency brakes either. Mine is a left hand service brake truck also.1wonton wrote:The early (high speed) rear axles have no emergency brake levers.
- 1crosscut
- Posts: 877
- Joined: December 25th, 2010, 7:22 pm
- Body Type: 82-A
- Model Year: 1929
- Location: Lincoln, NE
Re: 1928 rear ratio
Yes the early worm drives do not have emergency brakes. But they do have what many call an emergency brake handle. The handle is located on the left side of the driver and operate the service brakes thus it is a "service brake handle". Late in 28 ford added separate rear emergency brake shoes (government mandate) and moved the handle to the right of the driver so that the trucks had emergency brakes not tied to the service brakes. My truck is a January 29 and still has the service brake handle to the left. It is most likely one that was in the last batch of trucks produced that still had the handle on the left and no emergency brakes.1wonton wrote:The early (high speed) rear axles have no emergency brake levers.
Dave
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Dave
Dave
- Neil Wilson
- Posts: 3062
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- Contact:
Re: 1928 rear ratio
Brady,
All worm drive AA axles have gear ratios which were the same ratios as the TT. The first AA trucks only had the high speed gears along with the optional underdrive (Dual Drive or Dual High as it was names).
All worm drive AA axles have gear ratios which were the same ratios as the TT. The first AA trucks only had the high speed gears along with the optional underdrive (Dual Drive or Dual High as it was names).
Regards, Neil Wilson
______________________________________
aafords.com@gmail.com - use this email for contact
https://aafords.com/
______________________________________
aafords.com@gmail.com - use this email for contact
https://aafords.com/
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- Posts: 753
- Joined: August 11th, 2013, 4:25 pm
- Body Type: 82-A Platform
- Model Year: 1928
- Location: Hamilton, Mich.
Re: 1928 rear ratio
Well. Thanks for all the info. My truck is a Dec. 28. Has the Left hand "service brake", no seperate brake shoes. Wire spoke wheels, and the small frt. King pins.
So My understanding then is It was ordered with the optional Low speed rear end stamped with an "A". Putting in the higher speed, gears would be correct except for the ("A") stamped on the housing. ( B = high speed, correct?)
Then there is the Lincoln transmision issue. ( I have one that was bolted dirrectly to the front of the extra rear axle Grampa had laying in the river bottoms). Was that an aftermarket Item that could be purchased at that time? May have even been avalible for Model Ts.
Do I have this all correct as far as ratio and stamps.
And any info on the Lincoln Under / Overdrive would be appeciated.
KVO
So My understanding then is It was ordered with the optional Low speed rear end stamped with an "A". Putting in the higher speed, gears would be correct except for the ("A") stamped on the housing. ( B = high speed, correct?)
Then there is the Lincoln transmision issue. ( I have one that was bolted dirrectly to the front of the extra rear axle Grampa had laying in the river bottoms). Was that an aftermarket Item that could be purchased at that time? May have even been avalible for Model Ts.
Do I have this all correct as far as ratio and stamps.
And any info on the Lincoln Under / Overdrive would be appeciated.
KVO
KVO
Dec. '28 AA
Dec. '28 AA
- 1crosscut
- Posts: 877
- Joined: December 25th, 2010, 7:22 pm
- Body Type: 82-A
- Model Year: 1929
- Location: Lincoln, NE
Re: 1928 rear ratio
You have it correct on the stampings and ratios. If I were you I wouldn't loose any sleep over "correctness" by switching to internal high speed gears. Mine was switched from low speed gears to high speed gears before I found it. I haven't lost any sleep over that myself.KimVanOrder wrote:Well. Thanks for all the info. My truck is a Dec. 28. Has the Left hand "service brake", no seperate brake shoes. Wire spoke wheels, and the small frt. King pins.
So My understanding then is It was ordered with the optional Low speed rear end stamped with an "A". Putting in the higher speed, gears would be correct except for the ("A") stamped on the housing. ( B = high speed, correct?)
Then there is the Lincoln transmision issue. ( I have one that was bolted dirrectly to the front of the extra rear axle Grampa had laying in the river bottoms). Was that an aftermarket Item that could be purchased at that time? May have even been avalible for Model Ts.
Do I have this all correct as far as ratio and stamps.
And any info on the Lincoln Under / Overdrive would be appeciated.
KVO
Sorry that I have no information on the Lincoln transmission even though I live in "Lincoln".
Dave
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Dave
Dave
- Brady
- Posts: 361
- Joined: October 21st, 2003, 1:38 pm
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- Model Year: 1930
- Location: Norwich, NY 13815
Re: 1928 rear ratio
Thank you Neil for the reply, but I still don't understand all I know about it... I can't be the only one that has an AA worm drive marked TT ...? Have a great new year.
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- Posts: 478
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- Model Year: 1931
- Location: LHC Arizona & UP Michigan
Re: 1928 rear ratio
The left hand brake lever should probably more properly be referred to as a "parking brake", since it engaged the same brake shoes as the foot pedal brakes but it locked the brakes on when the vehicle was stopped or parked.
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- Posts: 753
- Joined: August 11th, 2013, 4:25 pm
- Body Type: 82-A Platform
- Model Year: 1928
- Location: Hamilton, Mich.
Re: 1928 rear ratio
ModelAkid wrote:The left hand brake lever should probably more properly be referred to as a "parking brake", since it engaged the same brake shoes as the foot pedal brakes but it locked the brakes on when the vehicle was stopped or parked.
Thanks to all. The gears will get changed. And you are correct on the "Name of the Parking brake". The auto industry nolonger uses the name "Emergency" brake for legal reason. Liability and such.
I do like the handle on the Left so when you get out your knee nocks the release on it. I thought I had it on...
KVO
Dec. '28 AA
Dec. '28 AA
- tiredtruckrestorer
- Posts: 338
- Joined: April 20th, 2003, 7:09 pm
- Model Year: 1931
- Location: Orwigsburg, PA
Re: 1928 rear ratio
Although some States objected to the Model A's early brake system, Pennsylvania would not allow any A's to be licensed because they did not meet with their newly enacted inspection law. The law required independent operating emergency brakes. Ford decided to revise the system and in late February or early March 1928 put the new system into production in the plants that supplied the State of Pennsylvania (Kearny, NJ and Pittsburgh, PA). By mid June, all other plants were installing the new system on cars and light trucks with the heavy trucks getting changed later in the year. Just a little bit of History.
Keith
Keith