speedo gear
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Supreme Member
iTrader: (4)
Joined: Nov 2003
Posts: 1,194
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From: santa barbara,ca
Car: 1990 iroc z
Engine: LSX 376 F1A
Transmission: 4l60e
Axle/Gears: 12 bolt 3.42
speedo gear
i have searched but dont really know how to figure which speedo gear i need. i just bought a 99 z28 rear end with 3.42 gears, i currently have the stock 10 bolt with 2.73 gears. i am running 17/40/285 tires on the back. i guess i really just need the gm part # for the right one.
Joined: Jul 1999
Posts: 10,950
Likes: 26
From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
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