Thanks for the replies! I certainly agree that $10 is well worth additional safety insurance. I will be ordering some today. I haven't looked to see what the grade of these bolts are, but I'd guess they'd be M10.9, similar to an SAE grade 8. I wouldn't have thought about these bolts shearing, especially with there being 4 on each LBJ mounting in relatively close proximity to each other. This is another great reason that this forum can be invaluable by being able to learn from others experiences. I am definitely replacing mine too. My rig ha's 267,000 miles, so age, fatigue, possibly having been over torqued in the past are the reasons I'll replace them. Someone has done some work on this T4R prior to me getting it and the workmanship was not the best. Thanks!