make sure you have fluid in there, if it goes dry it wont last. The rear ends are fine. The weak link is the spider gears, sudden shocks is where they have most issues so keep that in mind. Overall they seem to go great up till around 300hp.
__________________ 2003 Cobra Vert (Redfire) #3938 of 5082 @ 05/27/2003
472rwhp/493rwtq -Modification List - Dyno Sheet 2012 Mustang 3.7L M6 (Kona Blue) 2011 Ford Edge Sport (Red Metallic)