Flemmino Posted February 22, 2025 Report Posted February 22, 2025 I have an 09' buick lucerne with the LGD 3900, and a failing 4t65e. is there any proven transmission that will fit the w body that can hold up to 300hp? Quote
GnatGoSplat Posted March 8, 2025 Report Posted March 8, 2025 GM F40 is the only thing I can think of. Fiero guys use it. Quote
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