I have a greasable bolt from MORE (http://www.mountainoffroad.com/more.htm[) that I want to put on my rear leaf eye connection to the shackle, but the factory hardware is class 9.8 while the MORE bolts are grade 5. Is this safe? I see that the tensile strength of grade 5 is 120,000 psi while the class 9.8 is 130,500, which seems to be negligible, but I'm just checking to see if people have real world testing. Also is there any benefit to get 14mm greasable bolts to turn all the leaf spring bolts into greasable points? Thanks.
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