On my '97 Tahoe, I changed out the Fluid, and Filter a few years back.
While I didn't have any problems with the filter, I did have a problem
with the cheap Cork Gasket which came with this supposed AC/Delco Kit.
The gasket was problematic, and split in one area trying to obtain
proper torque values on the pan bolts.
I had to wind up dropping the pan again a short time later, and went to
Chevy, and got the correct Black Rubberized/Vulcanized Paper Gasket. No
probs after that. Mark