speedometer to read correct
Elder User
Joined: Jul 2001
Posts: 726
Likes: 0
From: Glendale USA
speedometer to read correct
you need to change the gear at the end of the speedo cable that goes into the transmission a dealer or 4x4 shop should have the different size gears for your setup in stock. or follow a car have the driver of the car go up to freeway speed and note where your speedo reads so you know where freeway speed is. changing the speedo gear is a fairly simple job 
Laughing Gas
Joined: Nov 2001
Posts: 807
Likes: 1
From: -
speedometer to read correct
Unless you have VSS. Look for a wire coming out of the rear diff. If it does you have VSS (vehicle speed sensor). It uses a ring in the diff to measure speed. You will need to recalibrate the computer at the dealership, or I belive superlift makes a module that you can use to do this.
Post Fiend
Joined: Nov 2001
Posts: 14,947
Likes: 6
From: Topsfield, MA
speedometer to read correct
Yes, there is an ABS sensor coming out of the top of the rear differential, theres a plug at the top. If you that, you have an electric speedometer and you can calibrate it yourself. Do a search for "speedo calibration" and you will dig up all the info you need, including directions, on how to recalibrate your speedo by urself. But, thats only if its electric. If it's a cable, you will need to do what he said above. All the dealer does is do a simple thing that you can do yourself, while charging you 50 or so dollars to do it. Its easy and you can do it yourself instead of letting the dealership do it.
Post Fiend
Joined: Nov 2001
Posts: 14,947
Likes: 6
From: Topsfield, MA
speedometer to read correct
If ur going to recalibrate your speedo, do what i said, do a search under "speedo Calibration" on this website and you will find the instructions on how to do it.
Trending Topics
Post Fiend
Joined: Nov 2001
Posts: 14,947
Likes: 6
From: Topsfield, MA
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!
Joe Kucinski
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!
Michael S. Palmer
The Best F-150 Deal of Every Trim Level (XL through Raptor)
Joe Kucinski
Thread
Thread Starter
Forum
Replies
Last Post
Phredawgy
Explorer, Sport Trac, Mountaineer & Aviator
15
May 1, 2007 06:35 AM
dunebuggys
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
6
Jul 8, 2000 10:09 PM