UPS charges way way off

[kiddo]

When customer chooses 2nd day air, the cart charges 17.69, but when I take the package (small box < .5cu) they say the charge is almost $40.00. No matter what I change in the UPS module, I can't get it to come anywhere near what I'm actually charged by UPS. Any input would be appreciated. The weight is correct.

Also, how does one search the forum for posts that include "UPS" as it seems to be to short to be considered in the search terms.

[kobra]

What is UPS stating the difference is from?
The module connects to their estimator and is not from a table in Zen Cart