I just drove another "gerald built transmission" tonight. 4l60e behind a stock 4.3 and I will say , it shifts pretty nice and to me it seems it could take a beating. Way better than a stock 4l60e for sure. Just wish I could throw alittle more power to it and see how it will react.
So far, it shifts pretty FIRM going into 2nd and 3rd. But need to adjust timing to really wake her up.
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