Wasn't the "Okie" bushing an aftermarket item that was originally intended to be installed by simply driving it into the end of the torque tube and pushing the worn bushing into the dead space behind it? I believe the replacement item (made by a manufacturer in Oklahoma- - - -hence the "Okie" moniker) had a lip seal built into it to make the other seal irrelevant.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!