Underdrive pulley concerns, 2005 Mustang V6

cheezhed · 02-04-2009

Will removing the stock harmonic damper and installing an underdrive damper cause premature crankshaft failure or any other engine concerns?

2005 V6 Auto 23,000 miles

SVT1995 · 02-05-2009

Are you talking about under drive pullies or dampers?

cheezhed · 02-05-2009

It's the same thing.

**stlwagon** · 02-05-2009

It won't hurt the engine. There is a school of thought that underdriving the alternator may lead to premature failure.