Axle ratio ?
Thread Starter
|
Freshman User
Joined: Apr 2007
Posts: 39
Likes: 0
Axle ratio ?
trying to fig out my gears without counting the teeth if i jack it up and turn the tires one tunr of the tire the driveshaft turns 1 1/4 any idea what gears i have the truck has a 4 speed
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 790
From: Simi Valley, CA
Originally Posted by onepeiceatatime
trying to fig out my gears without counting the teeth if i jack it up and turn the tires one tunr of the tire the driveshaft turns 1 1/4 any idea what gears i have the truck has a 4 speed
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 790
From: Simi Valley, CA
Originally Posted by onepeiceatatime
the thirdmember has know ID tag on it was trying to find a eaier way than ****ing the teeth but thany you
Junior User
Joined: Mar 2007
Posts: 52
Likes: 0
From: Lexington, VA
Sometimes the numbers on the gear are teeth count numbers, and you just divide.
If you are looking at the ring gear just count the teeth on that and the pinion, and divide, this is the most accurate method.
If you want to count turns, turn both wheels at the same time 10 turns, count pinion turns, then divide pinion turns by 10, this will be close.
Or turn one wheel 20, hold the other, and divide pinion turns by 10, close again.
Grigg
If you are looking at the ring gear just count the teeth on that and the pinion, and divide, this is the most accurate method.
If you want to count turns, turn both wheels at the same time 10 turns, count pinion turns, then divide pinion turns by 10, this will be close.
Or turn one wheel 20, hold the other, and divide pinion turns by 10, close again.
Grigg
Senior User
Joined: Jun 2006
Posts: 253
Likes: 4
From: L.I.
there is an easier way with out doing any math. lift the wheels of the ground mark one wheel with crayon at 6 o'clock position than mark driveshaft at 6 o'clock. than count drive shaft turns till mark on wheel is back at the 6 o'clock position. example 3 1/2 turns on shaft one turn on wheel 3.50:1 ratio.
joe
joe
Trending Topics
Thread Starter
|
Freshman User
Joined: Apr 2007
Posts: 39
Likes: 0
i have did that one but what it came out to was 1 1/4 turns of the drive shaft to one turn of the tire
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / Worst Features Of The 2025+ Ford Expedition
Brett Foote
10 Ways Ford is LOSING to the Competition
Joe Kucinski
Top 6 Best Deals Available on New Fords & Lincolns Right Now
Brett Foote
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Verdad Gallardo
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
Junior User
Joined: Mar 2007
Posts: 52
Likes: 0
From: Lexington, VA
Sounds like you lifted one wheel, turned the driveshaft, and got 1.25 turns? If so then the mistake you made is not lifting both wheels, because of the differential and how it works when only one wheel turns it turns twice as fast as two wheels were turning. So, if you git 1.25 turns of a wheel to one driveshaft then multiply by two and you may have 2.5 ratio. This method is fairly inaccurate, and why I listed a better method in my first post.
By using more turns and dividing you have less error.
Try it my way, and let us know what you find.
If you want to count turns, turn both wheels at the same time 10 turns, count pinion turns, then divide pinion turns by 10, this will be close.
Or turn one wheel 20, hold the other, and divide pinion turns by 10, close again.
Grigg
By using more turns and dividing you have less error.
Try it my way, and let us know what you find.
If you want to count turns, turn both wheels at the same time 10 turns, count pinion turns, then divide pinion turns by 10, this will be close.
Or turn one wheel 20, hold the other, and divide pinion turns by 10, close again.
Grigg
Junior User
Joined: Mar 2007
Posts: 52
Likes: 0
From: Lexington, VA
What is your actual tire diameter?
With that info and this site you can get a good guess as to what you have. http://www.drivetraindirect.com/t_gear_calculator.htm
Good luck,
Grigg
With that info and this site you can get a good guess as to what you have. http://www.drivetraindirect.com/t_gear_calculator.htm
Good luck,
Grigg
Thread
Thread Starter
Forum
Replies
Last Post
82airborne82
Brakes, Steering, Suspension, Tires, & Wheels
5
Sep 29, 2011 09:49 PM
BarnieTrk
1961 - 1966 F-100 & Larger F-Series Trucks
7
Dec 19, 2005 04:24 AM
ford_boy4819
Clutch, Transmission, Differential, Axle & Transfer Case
2
May 19, 2002 03:49 AM