I haven't purchased them yet, but I need 2" spacers with a different spacing pattern. I have found spacers that do exactly that. They are drilled for one pattern and have studs offset to match the pattern of the wheels. Using a spacer such as this allow for wheel options that aren't Pantera-specific in their offset or width.
For example: http://www.ebay.com/itm/2-WHEE...AOSwLVZV2e66&vxp=mtr
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