whirlpool overflow install problem

Have the American Standard evolution 6 foot whirlpool. Installation was smooth except for the overflow.. 1599.205 lifetime model. No matter what we do the overflow leaks on test. The gasket does not seem to seal no matter how tight we crank down on the screws. The gasket is thicker on one side than the other and the ridges are different on top and bottom. Not sure which way it goes and what side should be up. Also seems almost impossible to position the big gasket and have it stay in place as you put the retaining clip on and screw it down.. We do not have any printed instructions. The American Standard website is useless on this issue. Can anyone help with the gasket orientation or install tricks?

Make sure it,s lined up good, remember fatty on top and thin on bottom.

I believe you got that backwards master...

gasket

Fatty at the wide gap, skinny at the narrow side, regardless of whether fatty is up, down, sideways, or in between.

Could be wrong doubt it, but I have a documented case of IDGAF disorder that makes typing, spelling and rememberings difficult!!!!!!!!!!!!!!!!!!!!!!!!!