Speedo Correction for 97 - 98 F-150s
#1
09-12-2000, 09:16 AM
Join Date: Dec 1969
Location: Frisco, TX, USA
Posts: 261
Likes: 0
Received 0 Likes
on
0 Posts
Speedo Correction for 97 - 98 F-150s
Just wanted to pass on some information with the intention that it will help others...
I have a 98 150 4X2 with the 5.4, E40D, 355LS. The truck came with the Goodyears 2557016. I replaced them with Michelin LTX AT LT265/75/16. My speedo was off 3 - 6 mph. I replaced the factory 20 tooth orange speedo gear with a 19 tooth tan gear. The part number is 17271-C7VP-A. The speedo is now .2% slower than actual speed. This means that when I am going 70, it says I am going 69.9986. As you can see, it is pretty much dead on. I would like to thank Jean Marc for the help on this one. I hope this helps others, as it was very frustrating trying to figure out what gear I needed.
Jim
------------------
1998 F-150 XLT SC 5.4L
I have a 98 150 4X2 with the 5.4, E40D, 355LS. The truck came with the Goodyears 2557016. I replaced them with Michelin LTX AT LT265/75/16. My speedo was off 3 - 6 mph. I replaced the factory 20 tooth orange speedo gear with a 19 tooth tan gear. The part number is 17271-C7VP-A. The speedo is now .2% slower than actual speed. This means that when I am going 70, it says I am going 69.9986. As you can see, it is pretty much dead on. I would like to thank Jean Marc for the help on this one. I hope this helps others, as it was very frustrating trying to figure out what gear I needed.
Jim
------------------
1998 F-150 XLT SC 5.4L
#4
09-22-2000, 04:26 PM
Member
Join Date: Jan 2000
Location: Fort Bragg, NC
Posts: 59
Likes: 0
Received 0 Likes
on
0 Posts
