Mary, there is a company called RV Designer Collection that either makes or
sells RV curtain hardware of every conceivable sort for OEMs. I'll bet they
have the rollers that will fit in the shower curtain track on your '61
Safari. They are out of Rustburg, VA wherever that is. Last time I checked,
I couldn't find a web site but they have a toll free number -- (800)
938-5883. See if they have the parts you need for your shower curtain.
Goop luck.
Jim Greene
' 68 Tradewind