
Frequently Asked Questions
What vehicles use the Dana Spicer M75/M76 3.91 Ratio Gear Set?
This gear set is designed for vehicles fitted with Dana M75 and M76 differentials. Contact us with your VIN to confirm compatibility.
Why choose a 3.91 gear ratio?
The 3.91 ratio provides a balance of strong acceleration and highway drivability, making it ideal for performance and towing applications.
How do I know if my current gears are worn out?
Common signs include whining noises, clunking during acceleration, or uneven power transfer. If you notice these, a gear replacement may be needed.
Is there a warranty on this gear set?
Yes, every Dana Spicer gear set comes with a 12-month warranty for your peace of mind.