[wesrb]

Need to know how much power a stock 4t60-e can handle I know their pretty weak but how weak. If I replace it with the HD will I have any problems (92 Lesabre). Would like to get lowering springs, or coilovers, but can't find any, so if anyone knows where to pick some up let me know. Any answers or comments are appreciated

 

[dezldave961]

If it is in good working order, anything you throw at it with an N/A Series I 3800 isn't going to hurt it (aside from driving in a ridiculous manner with intent to break something... wacky burnout scenarios on dry pavement/turning, overheating torque converter by holding brake to load RPM excessively before launching, not monitoring fluid level/condition/filter, etc.).

It's not meant to get beaten on like a go-kart, as it's a heavy car with a lot of wear and meant for routine driving conditions. That said, you would have to personally induce most failures that could happen without adding 50-100+hp/tq to that car.