Method Race Wheels MR105 Wheel Matte Black 17x8.5 6x5.5 (6x139.7) 0mm Offset with Beadlocks
I've had these on my truck for a few years now and they have seen some solid use. Pre-Covid I took a hard hit on the rock ring and noticed it snapped off a bolt head. I ignored it for a week or so and that led to more heads popping off. The bolts for the beadlocks are 5/16-18 1.25" Grade 8 zinc plated. I had a friend help me remove the 4 bolt shafts from the rim and installed new bolts to manufacturer's tq spec (20ft lbs). The last bolt being installed snapped on install and the tire place said it may be because the KO2 tires have a thick bead?
Anyway, that rim popped the heads twice more and then a swapped it to spare duty. Went to go wheeling yesterday and got to the park to air down and saw this:
This is now the second rim that is popping off heads. When I say heads, I guess I really mean snapping the bolt shafts just past the threaded portion in the wheel. The rim didn't seem to have any damage on the ring where the bolts snapped off. They seem to have snapped off on the hour long drive on the highway up to the wheeling spot.
Here is a pic of how the others snapped of previously:
I am wondering if anyone else has run into this issue or if anyone has input on whether swapping to Grade 9 bolts should help? I will note that both times I've lost bolt heads it has been on the driver's side front wheel, but it has now been on two different wheels.
I've had these on my truck for a few years now and they have seen some solid use. Pre-Covid I took a hard hit on the rock ring and noticed it snapped off a bolt head. I ignored it for a week or so and that led to more heads popping off. The bolts for the beadlocks are 5/16-18 1.25" Grade 8 zinc plated. I had a friend help me remove the 4 bolt shafts from the rim and installed new bolts to manufacturer's tq spec (20ft lbs). The last bolt being installed snapped on install and the tire place said it may be because the KO2 tires have a thick bead?
Anyway, that rim popped the heads twice more and then a swapped it to spare duty. Went to go wheeling yesterday and got to the park to air down and saw this:
This is now the second rim that is popping off heads. When I say heads, I guess I really mean snapping the bolt shafts just past the threaded portion in the wheel. The rim didn't seem to have any damage on the ring where the bolts snapped off. They seem to have snapped off on the hour long drive on the highway up to the wheeling spot.
Here is a pic of how the others snapped of previously:
I am wondering if anyone else has run into this issue or if anyone has input on whether swapping to Grade 9 bolts should help? I will note that both times I've lost bolt heads it has been on the driver's side front wheel, but it has now been on two different wheels.