Ford Truck Enthusiasts Forums

Notices

Rear Diff ID.?

Thread Tools
 
Search this Thread
 
Old May 14, 2004 | 12:10 AM
Share
  #1  
79stepside's Avatar
79stepside
Thread Starter
|
New User
Joined: May 2004
Posts: 13
Likes: 0
Rear Diff ID.?
i was told when i purchased this truck it had a ford 9in 31 spline, and i wanted to know if it was factory or not or how to tell?
 
Reply
0
Old May 14, 2004 | 12:21 AM
Share
  #2  
Mil1ion's Avatar
Mil1ion
New User
Joined: Jan 2008
Posts: 0
Likes: 24
Yes Ford pickup
F-100's & F-150s came with a 9".

F-250's/350's usually have Dana's
 
Reply
0
Old May 14, 2004 | 05:47 PM
Share
  #3  
79stepside's Avatar
79stepside
Thread Starter
|
New User
Joined: May 2004
Posts: 13
Likes: 0
whew wipes sweat off forehead lol then i have a 79 stepside shorty
 
Reply
0
Old May 14, 2004 | 06:11 PM
Share
  #4  
Mil1ion's Avatar
Mil1ion
New User
Joined: Jan 2008
Posts: 0
Likes: 24
The Box length & wheelbase mean nothing. Get rid of the shortbox theory.

It is the frame strength/weight rating & axles that are combo's. F250/F350
 
Reply
0
Old May 14, 2004 | 09:03 PM
Share
  #5  
79stepside's Avatar
79stepside
Thread Starter
|
New User
Joined: May 2004
Posts: 13
Likes: 0
shortys are theory because you have long box and short box so it can be theory and along with f250's/f350's mine is a f100 custom none of the above
 
Reply
0
Old May 14, 2004 | 09:07 PM
Share
  #6  
Mil1ion's Avatar
Mil1ion
New User
Joined: Jan 2008
Posts: 0
Likes: 24
I'll try again.
When it comes to determining what rear Diff. you have... It doesn't matter whether the truck has a short bed or a long bed.

It is all about Truck specs mentioned above ...not the "BODY"

Thread moved
 
Reply
0
Old May 15, 2004 | 10:27 PM
Share
  #7  
kspilkinton's Avatar
kspilkinton
Postmaster
Joined: Jul 2001
Posts: 4,038
Likes: 3
From: South Kitsap County, WA
Double check that rear, I'm fairly certain it was possible in '79 for a Dana 44 or other similar light duty rear to be found in the RWD F100. The identifying feature of a 9" is the carrier unit bolts to the front. It does not have a rear cover.

-Kerry
 
Reply
0
Back to Subforum
Clutch, Transmission, Differential, Axle & Transfer Case
View Next Unread
Chipped flywheel tooth?




Advanced Search
Reply Closed Thread Share
Forum Jump

All times are GMT -5. The time now is 08:31 AM.

story-0
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-1
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-2
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-3
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-4
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-5
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-6
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE
story-7
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-8
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE
story-9
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE