Even with all of their aftermarket support, they still have a smaller pinion than a Dana 44, that is why I would upgrade to a 70, cheap, lots of choices and easy to build. All of the big truck manufacturers used them, AMC, IHC, Ford, Chevy, GMC, Dodge, etc. Could not have been that bad for all of them to use them in their heavy duty applications. Some info comparing a truck 70 vs 60 http://www.billavista.com/tech/Articles/Dana_70_Rear_Axle/index.html
Yeah they work great in trucks.. my truck has one but they arent for race cars or street rods... HEAVY and have 3/8" thick tubes at OVER 3.5"
