Help! Removing rear blocks and have an issue!!!

[n_bannerman]

Half way point of removing the block on the rear of my truck and my u-bolts are not threaded down far enough, can I drill a larger hole in the block and run it ontop the spring pack till I can get new u-bolts?

Thanks!!!!
Nathan

 

[Sasquatch_Ryda]

Please don't post the same question in multiple areas of the forum.