Speedometer correction issue
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Senior Member
Joined: Apr 2007
Posts: 948
Likes: 26
From: Green Bay, WI
Speedometer correction issue
Hi Guys! I was on the phone yesterday with a long time friend who owns a 1988 IrocZ 5.0 He decided to swap out the rear end a couple years ago. He had std rear end which I beleive would have been a mid 2's ratio (he has an automatic transmision)
He now installed a rear end out of a 5 speed car & I believe he said its a 3.42 ratio. Anybody know what speedo gear he needs in the transmision to correct the speedometer?
Or do we need to know whats in there now first?
Thanks for your thoughts!
He now installed a rear end out of a 5 speed car & I believe he said its a 3.42 ratio. Anybody know what speedo gear he needs in the transmision to correct the speedometer?
Or do we need to know whats in there now first?Thanks for your thoughts!
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: Speedometer correction issue
The stickies at the top of the Drivetrain forum may be useful.
JamesC
JamesC
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