after market seals.
Just had this conversation with a customer today. His comment I just wasted half the cost of a GM seals to find out I really should of just bought GM seals.
I told him a tough lesson but you learn from it.
He bought the driver side seals today & is buying passenger side next month. We gave him the whole kit at a nice discount. Upper & lower seals plus outside dew sweeps.
Full GM kit at $685 & shipping.