Can a 1997 Chevy suburban rear end gears fit 1999 Tahoe 4 wheel dr end?

It's *possible*, but not guaranteed. While both are GM vehicles and share some similarities, there are subtle differences between the 1997 Suburban and 1999 Tahoe rear ends that could impact compatibility.

The crucial factors are:

* Axle type: Make sure both vehicles have the same axle type (e.g., 8.5-inch 10-bolt, 12-bolt). A visual inspection is necessary to confirm this.

* Gear ratio: The gear ratio itself needs to be the same (or very close) for it to work properly.

* Housing dimensions: While likely similar, slight variations in the housing's dimensions could create fitment issues.

To be certain, you should:

1. Verify the axle type and gear ratio of both vehicles. This information is usually found on a tag on the differential housing itself, or in the owner's manual.

2. Compare the physical dimensions of the rear ends. Direct visual comparison is the best way to be sure. Look at the mounting points, the length of the housing, and the overall shape.

Without verifying these points, it's impossible to definitively say whether the rear ends will be interchangeable. A mechanic specializing in differentials is the best person to make a final determination before attempting the swap. Using incorrect parts could lead to damage to your vehicle.