2002 Chevrolet Tahoe Q&A

2002 Chevrolet Tahoe Question: How do I know when my front axle seals need replace? What should it cost?

I was told by an oil change shop that I really needed this, because it would fail in a week or two. I am very suspicous of there compenence. -
Answer 1
IS THIS A 4X4 AND ARE THEY FRT OR REAR AXLE SEALS. I WOULD ALSO BE WORRIED ABOUT THEM -
Comment 1
It is 4 x 4 and they are the left and right front axle seals -
Comment 2
IS THE UNDER SIDE OF THE CAR COVERED IN GEAR OIL? IF YOU PULL BOTH AXLES AND REPLACE SEALS IT COSTS APPROX 400.00 -
Comment 3
Thanks for your assistance. I will crawl under tomorrow, if it is not raining, and check. Appreciate your quick response. -