1928 gas cap
 

I have a 1928 closed cab pick up. Everything I read tells me I should have a threaded gas cap but I have a gas cap that has tabs and it seals on a quarter-turn. All the catalogs show the 28 29 gas cap is threaded and the 30 31 with tabs. Is it possible to have a tabbed 28 gas tank? Thanks

Re: 1928 gas cap
 

The 28/29 CCPU style cab went to July 1930. 1930 gas tanks had the quarter turn gas caps. I could be wrong, but I suspect someone installed an early 1930 gas tank on your pickup.
Rusty Nelson

Re: 1928 gas cap
 

Does it have a 7 tooth or 2 tooth steering gear with 30-31 type steering wheel.

Bob

Re: 1928 gas cap
 

Rusty, you just beat me to it. JS says the quarter turn cap was introduced in April, 1930 and continued through June, 1930.

Re: 1928 gas cap
 

Well I think I have a 1928, How can I tell the difference between a 7 tooth and a two tooth the steering column is out but not disassembled? I do not believe the gas tank has been changed as I am the one who removed it and it seems like it was the original install, paint matched and original welting was in place. I do have 29 headlights though. What are some other ways I can tell a 28 from a 29? As you can tell I'm new to all of this, any help is greatly appreciated. Where is the engine s/n stamped on the frame? I assume that will help.

Re: 1928 gas cap
 

The s/n was normally stamped on the top of the frame, just about 6" behind the left front body mount bolt hole..

Here is another thread that may help. Picture #2 in the first post is where it should be...

https://www.fordbarn.com/forum/showthread.php?t=221192

Re: 1928 gas cap
 

The 7 tooth steering has a one piece welded box and column, while the later 2 tooth steering has a clamp to hold the column to the main steering box.

Re: 1928 gas cap
 

There are pictures here

http://www.snydersantiqueauto.com/2-tooth-steering-box

http://www.snydersantiqueauto.com/7-tooth-steering-box

Re: 1928 gas cap
 

Check this picture for frame number location.

Bob

Re: 1928 gas cap
 

AA trucks used the tall cab like yours until mid 1930. The fuel tanks in the early 1930 AA trucks were the same shape as all 1928-1929 pickups, cars etc- only they had the non threaded 1/4 turn 1930 style cap.

Re: 1928 gas cap
 

When you find it enter it here...for the manufacture date of the engine.

http://www.modelahouse.com/cgi-bin/enumbers/numdate

Re: 1928 gas cap
 

Looks like I have a two tooth box which points to a 29 instead of a 28, right. Looking for engine number today. Thanks to all.

Re: 1928 gas cap
 

My 8-30-29 has the screw on gas cap.

Re: 1928 gas cap
 

You can also look at the firewall side of the gas tank, above the steering column..there might be a date stamped there..sometimes stamped upside down..

Similar to this

Re: 1928 gas cap
 

X2 Have you considered that the entire cab on your truck may be a transplant? Later cab on earlier chassis?

Re: 1928 gas cap
 

1928closed, welcome to the Barn. Where do you live? As you have have been informed; it is possible to have a 28/29 styled truck with the 30/31 1/4 turn gas cap. There are more out there then you realize. My Father-in-law has a AA with the later gas cap as well. Again welcome to the Barn, and post often. :) Jeff

Re: 1928 gas cap
 

easy enough...the 2 tooth is a 2 piece column, the 7 tooth is 1 piece column.
Add your location to your reply info. it can help in finding a local guy to help you.

Re: 1928 gas cap
 

Thanks, great information. Lafayette La

Re: 1928 gas cap
 

What does it mean when the serial number pad on the engine is blank?

Re: 1928 gas cap
 

B blocks weren't stamped there.
Has the number been ground off?
Original number pads are raw cast iron, so they have the same rough surface as the rest of the block.