Early Ford V-8 Club Forum

FORUM RULES: Users agree to these Rules when using Forum.

The site administrator reserves the right to change the terms and conditions of the user agreement without prior notice to the user. It is the responsibility of the user to regularly review the terms of this agreement.

The user agrees to the following terms:

All information that you provide to us for your membership is correct.
You will not use your membership to spam, harrass, or exploit other members in any way.
Vulgar, Abusive, Racist and Sexist Language will not be tolerated.
Commercial-type sales postings will not be allowed.
No mass posting or flooding of the boards is allowed.
No Advertising of parts or cars; no Ebay or business/commercial ads (please use the "Classified" for ads Wanted or For Sale).
VIEWING MULTIPLE TOPICS ON SCREEN: You can choose to see more than 10 Topics at a time ... Log In and choose "Preferences" from the top bar on the Forum page. Scroll down and Change the "Default Topics Returned" parameter to 25 or 50, and save the changes. Since this setting is stored in your browser 'cookies' (if enabled), it seems to use that stored value even if you are not logged in. So, if you use a PC that you haven't logged into the forum from, the setting still seem to remain at the default.
EXTERNAL PHOTO LINKS ON FORUM: You can still use external photo links in your posts on the new forum. They follow the rules of any link in that they have to have the URL link qualified down to the full image file name (example: .jpg). The links will open in a new browser window, the same as an uploaded image attached to a post. Since an image attachment to any post does not display inline with the post, the results are the same. You can use multiple external links within a post. This link is from photos on a site from Don Clink's 'Deuce@75' albums:

http://donclink.com/deuce_75_1/images/dscn2950.jpg

Using links from photo sites such as Photobucket can help in "size" issue with uploaded attachment files. For best viewing in web browsers, photos should be around the 800x600 pixel range, and probably not more than 1024x768. Most cameras today store HUGE jpg image files, as the default settings are in the 7, 8, 10, and 12Mb image sizes. The image files that are then attached are very large, and the browser can't display the full image size without using the scroll bars. Use the re-sizing functions of your photo editing software to reduce the image to 800x600, which reduces the file sixe and the image load time in the browser. Don uses Google's free Picassa3 software, which is an excellent photo management product. All of the photo albums of the Deuce, Grand National, and Auburn that are links on the NORG site were built using Picassa's web creation functions. And it's free? (THANKS to Don Clink for the info!)
HOW DO I SHOW MY EMAIL ADDRESS ALONG WITH MY USERNAME? You can LogIn on the Forum, and select PREFERENCES. On this page Members can add optional information such as their City,State, Country; Occupation; Hobbies: list a Homepage; list AOL Instant Messanger Handle; Signature; "Make Email Address viewable to others;" and even change the number of Default Topics shown on a page. WHEN others click on your profile, they will see this information.

EFV-8 Club Forum / General Ford Discussion / '39 Rear End

Reply to Discussion | New Discussion

<< previous || next >>

Posted By

Discussion Topic: '39 Rear End

Joe2009

05-11-2013 @ 9:18 AM

reply profile send p.m.

Member
Posts: 13
Joined: Oct 2009

I have a standard, I believe, banjo transmission on our '39 coupe. How can I tell for sure, and what is it's gear ratio?

"The older I get, the better I was."

ford38v8

05-11-2013 @ 9:55 AM

reply profile send p.m.

Senior
Posts: 2763
Joined: Oct 2009

Joe, the banjo case is the same for multiple years, but could also have different ring/pinions than original. For a starting point in identifying your ratio, look at the bottomside on the forward web for a hand stamped set of numbers. If your banjo is original, you'll probably find the numbers 9 34, which indicates pinion and ring tooth count for a 3.78 x 1 ratio.
9 34 = 3.78
9 37= 4.11
9 40=4.44
11 39= 3.54

For a positive identification, mark one tooth on the ring gear visible through the fill hole with a dab of color, and rotate for a tooth count.

Alan

supereal

05-11-2013 @ 9:59 AM

reply profile send p.m.

Senior
Posts: 6819
Joined: Oct 2009

If you are asking about the rear axle, not the transmission, you can check for stamped numbers on the center "web" of the middle part of the axle (banjo). The most common ratios are 3-78, and the numbers would be 34-9. The 4-11, used in hilly country and many pickups, reads 37-9, while the "flat country" axles, 3-54, would be 39-11. Outside of some minor differences, there is no easy way to determine if your axle is actually original. A best guess would be that it is, as the rear axle is one of the most durable parts of an old Ford, and unles there was serios damage at some time, it is likely it came with the car.

Joe2009

05-13-2013 @ 5:35 PM

reply profile send p.m.

Member
Posts: 13
Joined: Oct 2009

I looked to see if I could not find any stamped numbers (I'm not quite sure what and where the "web" is) but could not find any. I should also note that the car has a Columbia 2-speed which, I am led to believe, requires a special differential assembly case. Maybe it has no web or stamped numbers.

By the way, does any one know what the gear ratios are for the Columbia 2-speed (high and low range)?

"The older I get, the better I was."

supereal

05-13-2013 @ 9:34 PM

reply profile send p.m.

Senior
Posts: 6819
Joined: Oct 2009

The web is the reinforcing rib on the underside of the banjo. The numbers can be difficult to see. It helps to scrub the area with a Scotchbrite pad or similar pad. The Columbia conversion uses one stock axle housing, with the overdrive components in the special part on the other side side of the center housing. I don't recall the amount of the overdrive reduction. When not engaged, the ratio is that of the stock gearing. Most Columbias benefit from an overhaul, as the soft metal parts are often badly worn. This is commonly known as "bullet proofing".

39 Ken

05-14-2013 @ 4:39 AM

reply profile send p.m.

Member
Posts: 380
Joined: Oct 2009

The Columbia Two Speed Rear
reduces the final drive ratio
by 28%. With a 3.78 to one rear
end ratio, at 55MPH, your RPM's
will drop from approx 2350 to approx 1875.
These numbers are approximate because
tire size will alter these numbers a bit.

<< previous || next >>

NOTE: YOU MUST BE A REGISTERED USER AND BE LOGGED IN TO POST (and reply to) messages in this forum. If you are a first time user, please click the CREATE A NEW ACCOUNT in the masthead above to register and Log In. After that, all you do is LOG IN to enjoy using this site.

DISCLAIMER: The V-8 Club does no independent testing of any of the opinions, thoughts or suggestions presented in the website on the Forum, in the Tech Tips section, or any section. A reader should consider the website to be a forum wherein differing solutions to a particular set of circumstances may be discussed. Ultimately, the selection of an item for an individual's vehicle must be based upon the independent study of the vehicle owner in consultation with people in the hobby and restoration experts.

Early Ford V-8 Club Forum

Merchandise Questions

Membership Questions