speedometer?
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
You change the speedo gear in the side of the tranny. Follow the cable to the tranny, remove small retaining nut and pull it out. Take note of the gear tooth slant and count them. It is important to try to find out how much it is off before trying to correct it.
Report your tooth count, slant, and how far it's off and we will try to help you correct the issue.
John
Report your tooth count, slant, and how far it's off and we will try to help you correct the issue.
John
Senior User
Joined: May 2007
Posts: 190
Likes: 0
Try this calculator. the gear on the cable is the driven gear, inside trans is drive gear.
http://www.bgsoflex.com/speedo1.html
http://www.bgsoflex.com/speedo1.html
Thread Starter
|
Freshman User
Joined: Oct 2007
Posts: 37
Likes: 0
From: Lyman, SC
Trending Topics
Senior User
Joined: May 2007
Posts: 190
Likes: 0
Your welcome
To count the gear teeth you will need to have the truck jacked up and turn the wheel and count the end of each tooth. Or take a chance on the count being 9, i have three c6 trans and they each have 9 teeth machined into the output shaft.
To count the gear teeth you will need to have the truck jacked up and turn the wheel and count the end of each tooth. Or take a chance on the count being 9, i have three c6 trans and they each have 9 teeth machined into the output shaft.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
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
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Thread Starter
|
Freshman User
Joined: Oct 2007
Posts: 37
Likes: 0
From: Lyman, SC
Originally Posted by classicranger
Your welcome
To count the gear teeth you will need to have the truck jacked up and turn the wheel and count the end of each tooth. Or take a chance on the count being 9, i have three c6 trans and they each have 9 teeth machined into the output shaft.
To count the gear teeth you will need to have the truck jacked up and turn the wheel and count the end of each tooth. Or take a chance on the count being 9, i have three c6 trans and they each have 9 teeth machined into the output shaft.
Senior User
Joined: May 2007
Posts: 190
Likes: 0
Originally Posted by lucky no. 7
thats a great calculator yall posted but how do you know how many revolutions the speedo makes in a mile?
http://www.net-comber.com/tirecalc.html
Last edited by classicranger; Oct 11, 2007 at 04:24 PM.
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
Originally Posted by classicranger
you need to count the drive gear (inside trans) because you are trying to find the new driven gear.
John
Senior User
Joined: May 2007
Posts: 190
Likes: 0
Well i don't think they make to many options for the drive gear, some drive gears are mechined into the rear main shaft of the trans.
The calculator does give you the option to find either one so i would say yes if the drive gear is removable, but i am not 100% on that.
The calculator does give you the option to find either one so i would say yes if the drive gear is removable, but i am not 100% on that.