I let my car be a test car for a local speed shop looking to reengineer those same old GT500 parts to work and fit better. Here are a few pics of the new adjustable idler design. It actually bolts to the blower instead of below it using the bottom left two blower snout bolts. And its adjustable. Any questions, ask here. The pulley is also a custom made 2.6 steel pulley, that was bolted to the shaft. The blower shaft was cross drilled and the pulley hub pressed on with a key added to completely prevent slippage. The pulley itself is similar to the metco and can be swapped out very easy. Coming soon is a completely revised and engineered from scratch nose drive assembly using a 2.2 pulley. Not machined stock parts like steggy does.