Speedometer Readings vs. GPS
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New User
Joined: Jun 2004
Posts: 18
Likes: 0
Speedometer Readings vs. GPS
I took out the old 65 this weekend and did a GPS test on the speedo. Here's what i came up with. First number indicates truck speedo, second number is actual GPS speed.
10 - 20
20 - 35
30 - 50
40 - 65
50 - 80
I assume I would adjust this with a new speedo cable, but I'm not sure if I need to go up or down in my teeth count.
Any help would be appreciated.
Thanks
10 - 20
20 - 35
30 - 50
40 - 65
50 - 80
I assume I would adjust this with a new speedo cable, but I'm not sure if I need to go up or down in my teeth count.
Any help would be appreciated.
Thanks
Junior User
Joined: Sep 2006
Posts: 53
Likes: 0
From: South Carolina
Wow, A '65 with GPS, didn't even know they had Onstar back then. HeHe LoL
It is kind of wierd that the faster you go the more off you speedo is.
I bet that Real American Steel our '65s are made of is confusing the satelite signal.
It is kind of wierd that the faster you go the more off you speedo is.
I bet that Real American Steel our '65s are made of is confusing the satelite signal.
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