So you don't seem to have concerns about the 4* vs the 2*. The only OP we read who used 4* was "Taco" in one of your threads on another forum. You requested info from him but we never heard back. I thought you said you'd seen problems with 4*. When I went to NAPA yesterday, I was expecting to see that 4* was going to have a third sleeve in between the Outer and Inner you see on Ingalls and Specialty. If there WAS a third sleeve, I'd be concerned the 4* might come apart in use, more easily than a 2* with two sleeves.
You're one of the OP's I hoped would weigh in on this. If I don't get replies opposing 4* from actual experience, that's how I plan to go.
The axle I installed, from a new E450 that wasn't aligned beyond factory original. has offset (but not adjustable) bushings. You'd think the "generic" alignment would have been with Zero Degree Bushings... Outer sleeve and inner hole concentric...
