Harmonic Balancer for 68 Dart 340 eng

I am goi
Having trouble finding a balancer. I got one from summit (Sum-163273) When compared to the original, the TDC cut was on the wrong side(drivers side). On talking to the tech at summit we ordered the Mopar Direction balancer (DCC-4452816). The TDC cut is the same as Summit drivers side). The 68 340's timing indicator is on the passenger side because of the water pump neck on the drivers side. One solution I think is to remark the balancer at TDC. I'm asking if there is a correct Harmonic balancer? I'm sure someone has had this problem. Ron
I am going thru the same thing.
What I have found is the later model LA SB engines had driver side timing pointers on the timing chain cover, the earlier engine say 68 and 69 had passenger side pointers. I sourced a used SFI balancer and used a Mopar Performance stick on tape to correct the marks. I prefer to use the tape in any case because of all the tolerance stack up the marks are sometimes off considerable.