Miller chassis is in the house!

The Miller chassis tubes are finally here and the crew at Proving Grounds Racing is wasting no time putting them all together! John, PGR 4570 driver, has spent the last week, day and night, prepping for the build by scrubbing the tubes and laying them out on the fixture tables. Our good friend Joe, who also helped build the fixture tables, took a trip down to Phoenix over the weekend for round 2 to weld the chassis together. Check out the video and photos below to see the process of the 4400 build over the last week! First step is to clean the tubes to get the strongest weld possible! Cleaning the tubes from any contaminantes like oils from the manufacture or grit and debris for a clean TIG

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