Changing speedo gear -- do I need more teeth or less?
01-17-2003, 05:27 PM
#1
Le Mans Master
Thread Starter
Member Since: Mar 2002
Location: Coming home from Luckenbach Texas
Posts: 7,456
Likes: 0
Received 2 Likes
on
2 Posts
Changing speedo gear -- do I need more teeth or less?
Currently, my speedo says 75, but my GPS says 70. We have a bit of exaggeration on the part of the speedo -- I wondered why people were blowing past me on the freeway... :auto:
So I need to replace that little gear in my tranny. But do I need one more tooth, or one less tooth in that gear? :confused:
So I need to replace that little gear in my tranny. But do I need one more tooth, or one less tooth in that gear? :confused:
01-17-2003, 07:50 PM
#2
Melting Slicks
Member Since: Aug 2000
Posts: 2,310
Likes: 0
Received 0 Likes
on
0 Posts
Re: Changing speedo gear -- do I need more teeth or less? (page62)
According to ZIP's catalog:
Speedometer reads fast -- install a gear with more teeth.
Speedometer reads slow -- install a gear with les teeth.
Also, they say:
One tooth equals approximately 1-1/2 MPH.
Speedometer reads fast -- install a gear with more teeth.
Speedometer reads slow -- install a gear with les teeth.
Also, they say:
One tooth equals approximately 1-1/2 MPH.
01-17-2003, 09:06 PM
#3
Melting Slicks
Re: Changing speedo gear -- do I need more teeth or less? (page62)
Go to a Chevy dealer and tell them the gear and tire size and they will get you the correct gear. Did mine when I switched to the 3.70 rear,and the speedometer is dead on.
