I just swapped a '87 cab on my '88 Blazer frame and just noticed the fuse block has a ECM slot but no clips. I am beginning to realize its a diesel cab because I had to drill the hole for the computer cable in the firewall also ('87 should have been TBI too). How can I fix this? I just glanced at the block before the swap, and saw the ECM slot and thought it's all fine, but this evening, I was putting cab mount bolts in and noticed there's not any clips in tha dang thing. Cant say I've ever had that side apart on one, only unplugging them from the firewall side. Anybody have a clue what I should do?