Originally Posted by 6PakBee
Just a comment, I'd be leery of cutting more threads. Over the years I've seen pickups that appeared to have rolled threads and those that appeared to have cut threads. I saw an OEM pickup with cut threads completely fail due to vibration. Not pretty.


I vaguely remember the problem being straight threads versus tapered threads. Either one can be reproduced.

67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......