changing speedo gears
Thread Starter
Junior Member
Joined: Sep 2004
Posts: 44
Likes: 0
From: Columbia,TN
Car: 89 Formula 350
Engine: 355
Transmission: 700R4
changing speedo gears
I'm swapping out my 9 bolt rear for a 10 bolt. The 9 bolt has 3.27 gear and the 10 bolt is a 3.42 gear. I also have an electric speedo. Is there anything I can change to keep the speedo right?
Senior Member
iTrader: (2)
Joined: May 2004
Posts: 561
Likes: 3
From: Lake Elsinore,CA
Car: 1999 F-1 Camaro Conv 1990 Iroc-Z
Engine: LS1/L98
Transmission: A4/A4
Axle/Gears: 3.23/3.27
Supreme Member
Joined: Sep 2005
Posts: 2,151
Likes: 0
From: Osceola Indiana
Car: 92 RS(sold) 1989 IROC-Z
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: ones that turn
Hey thanks f1ls1 ive been looking for something like this now I just have to decide which gears to go with
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