Outer Limits 4x4 Board

I replaced the 3in lift in my GQ for HD setup......while doing so I removed the 10mm marks spacer from the Radius arms with the belief that the drop boxes had 10mm built into them.....

Now reading the website I can't find it mentioned.

Do Superior engineering drop boxes space front diff forward 10mm or not?

i had the smallest superior drop boxes on my GQ and they certainly did push the diff forward a bit to stop the scrubbing on the mudflaps. dont remember how much they pushed it forward though.