What size are the k-member bolts?

[88blown50GT]

I need the size on them to save a little time. I have tried every SAE socket I have and none of them fit. Please help. Need the bolt size for the long bolts with nuts on the other end.

Thank you!

My k-member bolts are in bad shape. Any tips for removal?

;0

 

[bluevenom867]

I think they are 18mm or 20mm,not sure.

 

[88blown50GT]

I thought so. Neither 18mm or 20mm worked. 19mm worked. I believe the bolt heads were slightly offset (bad forging?) and that's what caused the 19mm to work.

Got that puppy out. It's heavy as hell!