I also had an issue with DIY4x recently. I love the products they make but after placing an order for ez-inch 1" blocks, shackle flip with HD shackles, a week goes by and it hasn't shipped. I called them up and Tracy said they were waiting for the EZ inch pins and might be another week. It would have been nice if they told me that. I told her to remove the blocks from the order and just send the flip and HD shackles. Went to put the shackle flip on, no issues. Next the shackles... The holes were too small and I think they sent me the front shackles by mistake, not the rear with 9/16" holes. Had to drill out the holes with a 9/16 bit (I had to buy) on my drill press. Then she messed up and only returned one set of blocks even though I paid for 2 sets. Had to call again and she finally refunded the other set. Simple mistakes but makes it tough when you're in the middle and the truck is torn apart.
Ordered the zero rate blocks from ORD and had them here the next day since I live in Colorado.