Driveshaft Shop Intermediate Bars are made from a very high-grade material called 300M. The ultra high-grade chromoly is about the strongest material you can make axles out of. We have designed the Intermediate Bars to handle upwards of 1000HP and even more when couple with a Driveshaft Shop Spool. These are bare units, so you will need to re-use your current hanger bearing and bracket.