In the process of swapping boxes with the spare truck I bought. I started on taking the knacked box out of my original truck and got as far as removing the cooling pipes from the side of the box. However I am having issues with getting the pipes released from the union's at the side of the box? There isn't enough room to get a turn on ther spanner and I only have a crow's foot socket that goes to 19mm?? I have starter out, props off and all work done in the engine bay but haven't touched the mounting plate yet as I don't want the box to drop and damage the cooler pipes??