I got in a wreck the other day and needed to replace a frame slider and when i went to take it off the bolt it was extremly hard to unscrew, like it was cross threaded. When I installed them they went in easily but after alot of muscling i got the bolt out to find out the frame where the bolt screws into is stripped. No threads to thread a new bolt. Any idea on how to fix this? I was thinking a tap and die set but am not sure.