You're making me realize something important by saying this. I should mention that the second set of Summit shafts I installed seem to be holding on much longer than the first set. They are just starting to get a little slop in them but I also have been running my slipper much looser with more slip than when I was running the first set. I can't believe I over looked this information. But does this mean that the Summit shafts are truly stronger? Maybe, maybe not. I have 8 new stock shafts that came in from ebay last week. When the Summit shafts I am running now wear out too much or break, I will go back to the stock shafts with the same slipper setting and see if the stock shafts give the same performance as the Summits did.
I don't want anyone to believe that I am bashing on the Summit shafts, I like them a lot and I always preferred CV style shafts over U joint shafts. No one should be bashing on any component of the ERBE anyway, the problem is the MMM is too powerful
Nah! It's not of course but this power must make it hard for manufacturers to come up with parts that will be strong enough to handle the MMM. Let's think of the shafts for a moment, there's a limit to what can be done to make them bullet proof. I mean I can't imagine running some CV style shaft that is one inch in diameter with parts so strong and heavy that a full set of shafts would weight two pounds.
I'm thinking that the slipper is one of the most important device of the ERBE and those aluminum slipper pads is one of the best upgrades I put on my truck.