Why Change Gear Ratio?
A gear ratio swap is often one of the first mods for any Corvette owner. The ratio change increases torque and greatly improves overall driving experience. Changing your factory 3.42 ratio to 4.10s in a moderately modded car, (about 450 to 500 hp) will give a much quicker feel and will greatly increase torque to the wheels. |
Upgrade factory 3.42 ratio to A cryo treated micro polished

3.73, 3.90, or 4.10 ratio
This chart will help you to determine what RPM / MPH you can expect after a gear swap |
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ECS performs all gear ratio swaps in house using your original carrier and components. Many competitors will give you a unit off the shelf to save time and give you back a carrier with unknown wear or previous abuse.

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increase the potential of your Gear ratio swap

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Ring and Pinion Only
$399
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Cyro Treated Micro Polished Ring & Pinion

For 450+ HP Cars we recommend adding a hardened output shaft
(LISTED BELOW) |
Ring and Pinion Installed at ECS
Ratio of Choice
$1395
Includes Parts
Add $100 for A4 Automatic Trans Programming
A6 Automatic Pricing May Vary
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Hardened Shaft Only
$329
FREE INSTALL W/ RING & PINION INSTALL
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Hardened Output Shaft

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Hardened Output Shaft
Installed at ECS
$650
Includes Parts

Install of this item is no additional cost with complete ring and pinion install
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