I'm making my 1st gen ext cab 93 s10 tahoe into a phantom dually. I have a 2003 chevy Express 2500 van as a donor. I'm wondering if theres a reason why I shouldnt swap the rear axle from the van into my s10. I have the 6.0lq4 with 4l80e and the driveshaft from the van. Using the wire harness, ecu and fuel pump from it as well. My father has advised me to not use this axle because he says it's probably not safe but I just cant see why. Hes saying that it's too heavy and that itll cause a different kind of weight to happen (sprung or unsprung, not sure) and make it unsafe to drive. My thought was that since I'm adding so much weight to the front and it's a longer vehicle, the added weight and durability of the 3/4 ton axle would make it much better. Acting like the van just lost some weight.