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Drivetrain› Differentials and Rear-End Components

Kaaz

1.5-Way Limited-Slip Differential

$1,670.25 $1,559.75 Save $110.50

SKU: SBT3510

In Stock
In Stock
Ships by Aug 31
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$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Kaaz SBT3510 is a 1.5-way limited-slip differential designed for performance and race cars. It offers differential locking characteristics under acceleration, maximizing power distribution to the wheels that need it most. Under deceleration, it engages to assist in braking stability and smoother turn-in.

This differential features 20 plates for medium to high power levels and is compatible with both manual and automatic transmissions for rear differential applications. It includes 2L of gear oil and is available with a SuperQ option, which uses WPC metal treatment for reduced chattering, smoother engagement, better heat dissipation, and longer wear life.
Show original supplier description
The Kaaz SBT3510 1.5-way limited-slip differential is engineered for competition motorsports, providing enhanced traction and stability. Its 1.5-way design engages fully under acceleration, optimizing power delivery to the drive wheels, and partially under deceleration, aiding in braking and turn-in. This model is equipped with 20 plates, making it suitable for medium to high power applications. Designed for rear differential fitment, the SBT3510 is compatible with both manual and automatic transmissions. It comes with 2L of gear oil and is engineered to react quickly and strongly at its ex-factory preload (100% locking), ideal for smooth, dry tarmac use. The SuperQ variant offers further enhancements, including reduced chattering and smoother engagement due to WPC metal treatment, which also improves heat dissipation and wear life without requiring a break-in period. Locking rate adjustments are possible with all Kaaz limited-slip differentials. This specific part number, SBT3510, fits the following applications: Lexus IS350 (6/22-), SC430 (03-10), GS300 (03-05), GS430 (04-07), GS350 (07-20), GS450h (13-18), and LS430 (03-06). Please consult the application chart to confirm fitment for your specific vehicle. Important compatibility note: This differential will NOT work with 2.937 or 3.133 final drive ratios. Additionally, while the differential has the same number of plates on both sides, the plate configuration must be the same on both sides. The original quantity of plates and the Belleville (cone) spring washer(s) must be retained.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandKaaz
Part NumberSBT3510
CategoryDrivetrain

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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