Notices
1948 - 1956 F1, F100 & Larger F-Series Trucks Discuss the Fat Fendered and Classic Ford Trucks

Rear End Serial #?

Thread Tools
 
Search this Thread
 
Old Mar 3, 2017 | 08:20 AM
  #1  
acl9865's Avatar
acl9865
Thread Starter
|
Tuned
Joined: Feb 2017
Posts: 467
Likes: 21
From: Austin, TX
Rear End Serial #?

Can anyone confirm what rear end this is based on serial #?


Looks to me like BB-4193-B (or maybe D)?


Having difficulty uploading pics today but just want to gain some more knowledge on what I've got.


Thanks
 
Reply
Old Mar 3, 2017 | 10:29 AM
  #2  
harleymsn's Avatar
harleymsn
FTE Chapter Leader
20 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Dec 2001
Posts: 3,636
Likes: 11
From: Crossville, Tn
Club FTE Silver Member

Originally Posted by acl9865
Can anyone confirm what rear end this is based on serial #?


Looks to me like BB-4193-B (or maybe D)?


Having difficulty uploading pics today but just want to gain some more knowledge on what I've got.


Thanks
That is not a serial number, it is a part number. Where is that number stamped, a picture would help a lot. Also, are you sure that it is 4193 because I don't see that part number in any rear ends of that era.
 
Reply
Old Mar 3, 2017 | 10:36 AM
  #3  
acl9865's Avatar
acl9865
Thread Starter
|
Tuned
Joined: Feb 2017
Posts: 467
Likes: 21
From: Austin, TX
Stamped on the rear diff casing. Trying to upload but says incorrect format or file so I'm trying to resolve that.
 
Reply
Old Mar 3, 2017 | 10:42 AM
  #4  
harleymsn's Avatar
harleymsn
FTE Chapter Leader
20 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Dec 2001
Posts: 3,636
Likes: 11
From: Crossville, Tn
Club FTE Silver Member

Is there a tag attached to one of the casing bolts?
 
Reply
Old Mar 3, 2017 | 10:42 AM
  #5  
acl9865's Avatar
acl9865
Thread Starter
|
Tuned
Joined: Feb 2017
Posts: 467
Likes: 21
From: Austin, TX
Name:  RearDiff_zpsotvjwpun.jpg
Views: 138
Size:  221.3 KB
 
Reply
Old Mar 3, 2017 | 10:44 AM
  #6  
acl9865's Avatar
acl9865
Thread Starter
|
Tuned
Joined: Feb 2017
Posts: 467
Likes: 21
From: Austin, TX
Name:  Capture1111111_zpshnlxfvmp.png
Views: 138
Size:  1.25 MB
 
Reply
Old Mar 3, 2017 | 11:37 AM
  #7  
harleymsn's Avatar
harleymsn
FTE Chapter Leader
20 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Dec 2001
Posts: 3,636
Likes: 11
From: Crossville, Tn
Club FTE Silver Member

Can you post a picture of the entire rearend, like I said that I can't find that number related to any of the 48-52 rears.
 
Reply
Old Mar 3, 2017 | 11:54 AM
  #8  
49fordv8f4's Avatar
49fordv8f4
Cargo Master
Joined: Aug 2014
Posts: 2,594
Likes: 72
From: North Central Arkansas
That is the housing part number for the housing half without the pinion, drivers side, Timken/Ford axle F4-F5. The gear ratio is stamped on that housing between the two parallel ribs facing backward. It will have numbers like 6-35 (5.83 ratio) or 6-40 (6.67 ratio) stamped there. There is also a 5.14 ratio, but I don't remember the ring and pinion numbers.
Mark
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-1

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-2

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-3

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
story-4

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
story-5

Top 10 Ford Trucks Coming to Mecum Indy 2026

 Brett Foote
story-6

5 Best / 5 Worst Ford Truck Wheels of All Time

 Joe Kucinski
story-7

Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!

 Joe Kucinski
story-8

Every 2026 Ford Truck Engine RANKED from WORST to FIRST!

 Michael S. Palmer
story-9

The Best F-150 Deal of Every Trim Level (XL through Raptor)

 Joe Kucinski
Old Mar 3, 2017 | 12:22 PM
  #9  
harleymsn's Avatar
harleymsn
FTE Chapter Leader
20 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Dec 2001
Posts: 3,636
Likes: 11
From: Crossville, Tn
Club FTE Silver Member

Originally Posted by 49fordv8f4
That is the housing part number for the housing half without the pinion, drivers side, Timken/Ford axle F4-F5. The gear ratio is stamped on that housing between the two parallel ribs facing backward. It will have numbers like 6-35 (5.83 ratio) or 6-40 (6.67 ratio) stamped there. There is also a 5.14 ratio, but I don't remember the ring and pinion numbers.
Mark
The 5.14 would be 36-7
 
Reply
Old Mar 3, 2017 | 03:07 PM
  #10  
NumberDummy's Avatar
NumberDummy
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 783
From: Simi Valley, CA
Club FTE Gold Member
Originally Posted by 49fordv8f4
That is the housing part number for the housing half without the pinion, drivers side, Timken/Ford axle F4-F5. The gear ratio is stamped on that housing between the two parallel ribs facing backward. It will have numbers like 6-35 (5.83 ratio) or 6-40 (6.67 ratio) stamped there. There is also a 5.14 ratio, but I don't remember the ring and pinion numbers.
Mark
That's the casting number for the housing, it's not a part number.

Several hours ago, I looked at every rear axle parts list in the 1948/56 truck catalog, there's no such part number as BB-4193-B

In fact, there no basic part number of 4193 either.

Casting numbers are foundry marks, cannot be cross referenced to Ford part numbers.
 
Reply
Old Mar 3, 2017 | 03:52 PM
  #11  
46fordtruck's Avatar
46fordtruck
Moderator
20 Year Member
Joined: Nov 2001
Posts: 2,643
Likes: 35
From: Orange County, CA
Club FTE Gold Member
BB is the early big truck truck, starting in '32. That's why you won't find BB parts in the '48 and later books
 
Reply
Old Mar 3, 2017 | 04:48 PM
  #12  
NumberDummy's Avatar
NumberDummy
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 783
From: Simi Valley, CA
Club FTE Gold Member
Originally Posted by 46fordtruck
BB is the early big truck truck, starting in '32. That's why you won't find BB parts in the '48 and later books
1948/56 truck parts catalog.

Parts list #73 = Timken model 53566: 1948/50 F4/F5; F5 Parcel Delivery & COE
 
Attached Images  
Reply
Old Mar 3, 2017 | 05:15 PM
  #13  
49fordv8f4's Avatar
49fordv8f4
Cargo Master
Joined: Aug 2014
Posts: 2,594
Likes: 72
From: North Central Arkansas
The BB number is from '32. The tube should have 7RT-4011-B cast in it close to the spring mount.
Mark
 
Reply
Old Mar 3, 2017 | 05:19 PM
  #14  
NumberDummy's Avatar
NumberDummy
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 783
From: Simi Valley, CA
Club FTE Gold Member
Originally Posted by 49fordv8f4
The BB number is from '32. The tube should have 7RT-4011-B cast in it close to the spring mount.
Mark
BB prefix introduced in 1932, but there are BB part numbers listed in parts catalogs thru at least 1979.

See pic in post #12 for BB rear axle part numbers.
 
Reply
Old Mar 3, 2017 | 06:22 PM
  #15  
acl9865's Avatar
acl9865
Thread Starter
|
Tuned
Joined: Feb 2017
Posts: 467
Likes: 21
From: Austin, TX
Thanks everyone!
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
JT250
1999 - 2003 7.3L Power Stroke Diesel
19
Aug 5, 2013 10:45 AM
Kizer12
1961 - 1966 F-100 & Larger F-Series Trucks
12
Nov 17, 2012 12:09 AM
KRH1326
1983 - 2012 Ranger & B-Series
3
Mar 3, 2011 03:55 PM




All times are GMT -5. The time now is 11:50 PM.

story-0
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-1
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-2
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-3
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-4
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-5
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-6
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE
story-7
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!

Slideshow: Ranking the 5 things owners love about their Super Duty and 5 things they don't

By Joe Kucinski | 2026-04-29 16:36:49


VIEW MORE
story-8
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!

Slideshow: Ranking all 12 Ford truck engines available in 2026.

By Michael S. Palmer | 2026-04-22 13:32:20


VIEW MORE
story-9
The Best F-150 Deal of Every Trim Level (XL through Raptor)

Slideshow: The best Ford F-150 deal for every trim level (XL through Raptor)

By Joe Kucinski | 2026-04-21 15:59:01


VIEW MORE