ACDelco Dexron LS 75W-90 Gear Oil – 32 oz bottle, OE factory-grade limited-slip formula for 2007+ GM manuals

ACDelco GM Original Equipment 10-4034 (88862624) Dexron LS 75W-90 is a factory-grade gear oil formulated for 2007-and-newer manual transmissions and transfer cases, and it already includes a limited-slip friction modifier.

This SAE 75W-90 gear lubricant from ACDelco meets General Motors' OE expectations for late-model manual gearboxes and transfer cases. It replaces the need for an aftermarket top-treat friction additive because the required limited-slip modifier is built into the formulation. Packaged in a convenient 32 oz bottle, the fluid is sized for topping off and service intervals where the vehicle manufacturer specifies Dexron LS gear oil.

What vehicles and components is this gear oil intended for?

ACDelco Dexron LS 75W-90 is specified for manual transmissions and transfer cases in model-year 2007 and newer GM vehicles that require a Dexron LS-type gear lubricant. It is tailored to meet the friction and shear-resistance requirements of modern manual drivetrains.

• Designed for 2007+ GM manual transmissions and transfer cases
• Suitable where the manufacturer specifies Dexron LS 75W-90
• Compatible with limited-slip differentials built into certain transfer cases
• Packaged in a 32 oz container for service or top-off use

How does the built-in limited-slip friction modifier affect performance?

The product already contains a dedicated limited-slip friction modifier, so you won’t need to add a separate top-treat additive. That means consistent clutch engagement, quieter operation in limited-slip applications, and simplified servicing because a single fluid meets the frictional requirements.

• Eliminates separate top-treat additives for limited-slip systems
• Helps maintain proper clutch engagement and reduce chatter
• Ensures consistent friction characteristics across temperature ranges
• Saves time during maintenance and prevents additive mismatch

When should I choose this 32 oz ACDelco bottle for service?

The 32 oz size is ideal for topping off a transmission or transfer case between scheduled services or for a small-capacity gear unit. If a full fluid change requires more volume, this bottle works well as a supplement or for technicians performing quick maintenance tasks.

• Perfect for top-offs and minor fluid level adjustments
• Handy for mobile service and emergency carry-in the shop
• Appropriate when vehicle capacity is small or partial fills are needed
• Compact, easy-to-store bottle for routine maintenance

Are there any compatibility or installation notes I should know?

Use this fluid only where the vehicle manufacturer approves Dexron LS 75W-90 or an equivalent specification. Always follow the vehicle service manual for capacity, fill procedures, and torque specs; if another OEM specification is required, confirm compatibility before mixing fluids.

• Confirm vehicle requirements in the owner’s manual or service guide
• Avoid mixing with incompatible gear oil types without checking specs
• Follow proper fill levels and bleed procedures for transfer cases
• Dispose of used fluid per local environmental regulations

Who is this for: ACDelco GM Original Equipment 10-4034 Dexron LS 75W-90 in the 32 oz size is aimed at DIY owners of 2007-and-newer GM vehicles, independent mechanics, and fleet technicians who need a factory-grade gear lubricant with a built-in limited-slip modifier. It’s a practical choice for routine topping, quick service jobs, or when you want an OE-specified product that removes the extra step of adding a separate friction modifier.