Speedometer
#1
Member
Thread Starter
Join Date: Apr 2003
Location: Cedartown, Georgia
Posts: 270
Likes: 0
Received 0 Likes
on
0 Posts
Car: 86 T/A
Engine: 305
Transmission: 700-R4 Auto
Speedometer
I need to know how I would go about fixing my speedometer problem. It is about 10 MPH off. When Im driving, if im going 40 MPH, IM really doing 50. So what caused this problem? I think its connected to the tranny gears isn't? Please help. I dont know if I need to replace the speedometer cable or what. Thanks.
86 trans am
86 trans am
#2
Senior Member
Join Date: Jan 2002
Location: Chesapeake Va
Posts: 943
Likes: 0
Received 0 Likes
on
0 Posts
is this a new problem or did you buy the car with the problem, sounds like someone changed the rear end ratio and never changed the speedo to compensate. there is a set of small gears that are in the side of the tranny which connect to the speedo cable, i'm not sure about the calculation but I know someone on here can tell you which gears to buy from GM to fix the problem,its pretty easy to do once you have the new gears.
Thread
Thread Starter
Forum
Replies
Last Post