Notices
1973 - 1979 F-100 & Larger F-Series Trucks Discuss the Dentsides Ford Truck
Sponsored by:
Sponsored by: Moser

axle ratios

Thread Tools
 
Search this Thread
 
Old Sep 25, 2004 | 10:18 PM
  #1  
smoke n tires's Avatar
smoke n tires
Thread Starter
|
Elder User
Joined: Sep 2004
Posts: 500
Likes: 0
From: midwest
axle ratios

i have a 78 f150 460 with a 9in. i recently removed the gears to inspect and service the diff. i counted and divided the teeth on the ring and pinion and came up with a 2.59 ratio!!! i never heard of this ratio, has anyone else? i would like to change to a 3.25 but the truck will still melt the tires...
 
Reply
Old Sep 25, 2004 | 10:19 PM
  #2  
Mil1ion's Avatar
Mil1ion
New User
Joined: Jan 2008
Posts: 0
Likes: 24
What was the teeth count on both gears ?

I think you have a 2.75 :1
 
Reply
Old Sep 26, 2004 | 03:26 AM
  #3  
docholiday72tx's Avatar
docholiday72tx
Posting Guru
Joined: Jul 2002
Posts: 1,335
Likes: 1
From: waco
If it is a ford 9 inch in a 78, chances are good it's probably 2.75:1. To my knowledge there were 6 gear ratios offered. 2.75, 3.00, 3.25, 3.50, 3.70, and 4.11.
 
Reply
Old Sep 26, 2004 | 09:52 AM
  #4  
smoke n tires's Avatar
smoke n tires
Thread Starter
|
Elder User
Joined: Sep 2004
Posts: 500
Likes: 0
From: midwest
the tooth count was 17 pinion, 44 ring. the gear is awesome on the interstate but it sucks in town.
 
Reply
Old Sep 26, 2004 | 09:54 AM
  #5  
smoke n tires's Avatar
smoke n tires
Thread Starter
|
Elder User
Joined: Sep 2004
Posts: 500
Likes: 0
From: midwest
the tooth count was 17 pinion, 44 ring. the gear is awesome on the interstate but it sucks in town. i figured it was a 2.75 but it doesnt add up.
 
Reply
Old Sep 26, 2004 | 10:33 AM
  #6  
LxMan1's Avatar
LxMan1
Moderator
Joined: Dec 2001
Posts: 22,436
Likes: 17
From: Louisville,Ky.
It's probably actually 16 pinion and 44 ring gear = 2.75
 
Reply
Old Sep 26, 2004 | 01:02 PM
  #7  
smoke n tires's Avatar
smoke n tires
Thread Starter
|
Elder User
Joined: Sep 2004
Posts: 500
Likes: 0
From: midwest
your problably right, its hard counting pinion teeth when the gear is set up.. i still would like a 3.50 or even a 4.11 in town. that would make a big difference.i just have the truck for a work vehicle but i like to light the tires every once in a while.
 
Reply




All times are GMT -5. The time now is 09:27 PM.

story-0
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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