Different Pop-Up length needed

I have installed Price Pfister lav taps. They came with a pop up drain that had a overflow. I required one that does not have one. Purchased an OSB pop up drain. Here is where the fun began. I robbed the brushed nickel ring and stopper from the PP and installed it on the OSB drain. The PP stopper is designed slightly different (length) and the pop up will not open high enough.

Are there different pop-up lengths available (just the plastic piece that you connect to the swivel rod) and where can you get one.

Thanks

There are generic or universal pop up stoppers, but anything universal really means ''fits some things, sort of, doesn't really fit anything just right'' . Why not look for the proper complete assembly

It is the proper complete assembly. If I use the chrome OSB drain ring and stopper it will work fine. By using the PP stopper it is 1/2" too short. OSB does not make a non-overflow drain in brushed nickel, this is why I substituted parts.