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Old 09-24-2003, 03:25 PM   #1
spudshaft
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Default What\'s the difference between a 28-29 and a 30-31 Model A?

Generally speaking? I think a 30-31 is wider? Do a lot of the body parts interchange?
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Old 09-24-2003, 03:28 PM   #2
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Default Re: What\'s the difference between a 28-29 and a 30-31 Model

Yes and No.
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Old 09-24-2003, 03:34 PM   #3
Smokin Joe
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Default Re: What\'s the difference between a 28-29 and a 30-31 Model

Look at the sides of the cowl. 28/29 has that curved indented portion. 30/31 doesn't have this. Easiest way to quickly tell them apart.

The frames are interchangeable all 4 years with minor variations. You can put a 31 body on a 28 frame.
28/29 bodies are different than 30/31 so things like doors won't interchange. There are also Briggs and other bodies to add to the confusion. All the smaller pieces were changed as Henry saw fit and some things changed in mid year or were held over. Mirrors, step plates, horns etc.

2 door sedans and closed cab pickups use the same doors. At least in the 30/31 cars.
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Old 09-24-2003, 03:44 PM   #4
Honest
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Default Re: What\'s the difference between a 28-29 and a 30-31 Model

Rod and Custom magazine had a very good article how to id years and body styles.....I dont remember which one...but someone will remember.
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Old 09-24-2003, 04:58 PM   #5
Unkl Ian
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Default Re: What\'s the difference between a 28-29 and a 30-31 Model

The 30-31 cowl is more like the 32,while the 28-29 cowl is more like the 27.I think the belt line is slightly different,and the 30-31 has an extra bead that runs along the bottoms of the doors.Rad shell is different,and I think the hoods are different lengths.
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Old 09-24-2003, 05:14 PM   #6
Darwin
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Default Re: What\'s the difference between a 28-29 and a 30-31 Model

There aren't all that many body parts that will interchange between 28/29 and 30/31 on a roadster or otherwise. The 30/31 is a bit wider in the cab. The fenders, splash aprons and boards are all different. The firewall configurations are completely different. Headlights are different and the very early tailights are different from later ones. Fuel capacity is a bit smaller on the 28/29. All I can think to add for the moment.
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Old 09-24-2003, 05:17 PM   #7
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Default Re: What\'s the difference between a 28-29 and a 30-31 Model

rod and custom feb 2001 is the one you want...`model a spotters guide`
monkey
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Old 09-24-2003, 06:04 PM   #8
Jive-Bomber
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Default Re: What\'s the difference between a 28-29 and a 30-31 Model

-The big firewall difference is that 28/ 29 gas tank IS the upper firewall and cowl, while 30/ 31's have a one piece convex firewall.
-The trunk lids interchange
-30/ 31 have longer doors, different beltline, etc.

On a side note, most folks call 1928 Ford Roadsters 29's, but there is a difference- 28's have no outside door handles!
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Old 09-24-2003, 07:02 PM   #9
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Default Re: What\'s the difference between a 28-29 and a 30-31 Model

not to hijack the post, but how do you tell a 28 from a 29, and a 30 from a 31?
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Old 09-24-2003, 07:12 PM   #10
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Default Re: What\'s the difference between a 28-29 and a 30-31 Model

From what I understand, 1928 cars had forged running board brackets and in 1929 they switched to stamped steel brackets. front fender brackets could be either stamped or forged. So if tha car still has running boards you can reach under and check which kind of bracket it has.
somewhere in there they put rubber motor mounts in them too.
1930 had a two piece apron with a seam above the front ede of the running board and the 1931 had a solid one piece apron. these can be swapped but the body has to come off to do it so it's not usual. (Except on DRD57's coupe, I think his are switched years)
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Old 09-24-2003, 07:18 PM   #11
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Default Re: What\'s the difference between a 28-29 and a 30-31 Model

1928-29
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Old 09-24-2003, 07:27 PM   #12
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Default Re: What\'s the difference between a 28-29 and a 30-31 Model

30-31
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Old 09-24-2003, 07:36 PM   #13
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Default Re: What\'s the difference between a 28-29 and a 30-31 Model

It can be tricky to pinpoint the exact year on a hot rod A. For example, take the naughty-looking model A coupe right above this post. It's a '30/'31 body, but which? Because it has a deuce grille shell and no fenders (not to mention a '32 frame) you can't go by the grille shell ('30s and '31s are different) or the splash guards (two piece vs. one piece).

Unless this coupe has a teardrop-shaped indentation on the firewall that only the late-year '31s had, I'm not sure there are any clues left. To make things even more difficult, Henry was known to 'use up' parts from a previous model year on the current year's model to reduce costs, so there are exceptions to many of these rules...
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Old 09-24-2003, 07:41 PM   #14
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Default Re: What\'s the difference between a 28-29 and a 30-31 Model

By the way, that chopped '30/'31 is badass!
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Old 09-24-2003, 08:39 PM   #15
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Default Re: What\'s the difference between a 28-29 and a 30-31 Model A?

The most important difference is more leg room in the 30-31.
Try riding in a 28-29 roadster if your over six feet tall.
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Old 09-24-2003, 08:43 PM   #16
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Default Re: What\'s the difference between a 28-29 and a 30-31 Model

All 28-29 cars have the assembly date stamped on the drivers side firewall.
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Old 09-24-2003, 09:06 PM   #17
sedan_dad
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Default Re: What\'s the difference between a 28-29 and a 30-31 Model

When ever I see a bitchin' ride like that 31 coupe it reminds me of the morons who ask "What color you gonna paint it?"There are so many folks who just don't get it.
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Old 09-24-2003, 09:41 PM   #18
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Default Re: What\'s the difference between a 28-29 and a 30-31 Model

Other 28/29 differences are the tail light shape, (drum vs tapered) and the anti-rattler bulge in the rear of the splash apron. also the front fenders are different, the early fender is "round" where it meets the splash apron the later one has a squarish corner. To make this subject even more muddy we could add AR's
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Old 09-24-2003, 10:40 PM   #19
Toqwik
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Default Re: What\'s the difference between a 28-29 and a 30-31 Model

My 28 does not have a number stamped on the firewall, but does have a body number stamped under where the original seat riser was. canadian built A's were put together with those square headed screws, don't know what they are called, if anyone gives a shit.....Scott
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Old 09-24-2003, 11:25 PM   #20
flt-blk
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Default Re: What\'s the difference between a 28-29 and a 30-31 Model

My truck is a 31 (Had dimpled firewall) with 30 aprons (Yes it has fenders).
It's titled as a 29 because that's the only title I could find.

Sometimes I call it a 30 and sometimes I call it a 31. I just agree with the idiots that call it a 32 Deuce because that's the only phrase they know.
TZ
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