8.8 swap
Easiest way ive done without a jig is to make sure its on a solid surface use a good graduated level, level out the known good side take the to be welded side and level it on all axis's available. The 9" I did this way has had great service life in my Vega. Im sure we can all agree a puck style jig is the BEST way but can be done without with good results.