Tomei 3.9:1 Final Gear Set Nissan VQ35 Z33/V35

Drivetrain Driveshafts

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Part #: TC201A-NS04A

The 3.9 final drive setup from Tomei is an economical way of improving acceleration in the 350Z and G35. Increases available power by 10% per gear, resulting in faster acceleration in every gear. These gears really begin to shine with the larger staggered tire setups prevelant in the Z/G world. Professional installation required. Only for use on 6 speed manual transmission models.

We offer an installation kit that contains all new Nissan OEM bearings and seals, we highly recommend the purchase and use of this install kit. Please note that installing a ring and pinion requires precision setting of the bearing pre-load and clearances and may require install shims to complete the job, these shims are available from your local Nissan dealer in different thicknesses, due to the wide range of shims and the potential variances between different cars we do not include nor offer these shims.

It is highly recommended that an experienced mechanic install this ring and pinion gear set as excessive noise or even catastrophic failure can result from improper installation.


Any returns for an exchange or refund will be allowed within 30 days from the receipt of your order and must be authorized prior to shipping with an RMA Number (Return Merchandise Authorization). To receive your return instructions and RMA# please use our online form under Returns and Exchanges! Once you receive your return instructions please ship out the item at your earliest convenience and provide the tracking number to your customer service rep. The customer will be responsible for all shipping fees. Before shipping your product back please make sure you package it up exactly how you received it and in all of its original packaging. All items must be in brand new and resalable condition. Once the item is received it will be inspected and a credit will be issued accordingly. All returns are subject to a 15% restocking fee. Any returns received without an RMA# will be charged a restocking fee and any shipping fees associated with the return. An item that does not ship directly from IIR's warehouse is considered a "special order" item and no returns will be authorized.

Tomei 3.9:1 Final Gear Set Nissan VQ35 Z33/V35
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