speedo gear selection/replacement

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Aug 5, 2009 | 06:58 AM

kamaroguy27

Thread Starter

Junior Member

Joined: Apr 2002

Posts: 5

Likes: 0

From: New Jersey

Car: 1982 Z/28

Engine: 350 4bbl

Transmission: TH350

Axle/Gears: 3.42 posi

speedo gear selection/replacement

Hey guys,
Just trying to get my speedo working correctly. I have a 3.42 rear and a TH350 trans, stock size tires on an 82z. I don't know what gear is in the trans, but the speedo is overreading by quite a bit. Any guesstimate on how many teeth I need?

Thanks!

k27

Aug 5, 2009 | 07:49 AM

JamesC

Moderator

iTrader: (5)

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: speedo gear selection/replacement

Quote:

Originally Posted by kamaroguy27

Just trying to get my speedo working correctly. I have a 3.42 rear and a TH350 trans, stock size tires on an 82z. I don't know what gear is in the trans, but the speedo is overreading by quite a bit. Any guesstimate on how many teeth I need?

Check the sticky at the top of the page.

JamesC