Yes the holes had to be made in the frame because the crossmember was moved up. You do not want to bolt to the frame as it would flex to much. This way all the stress is on the crossmember as it was factory. Tubular arms are lighter?? I bought them cause they looked cool. I beleive they may give you a little more clearance also??
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92 C1500 stepside 496 Stroker Competiton Engineering Ladder bars/QA1 coilovers. Dana 60 rear with 4.10 gear and posi. Bonspeed Palisade 20x12 in rear w/335/30/20 and 20x8.5 front w/245/40/20. 5/8 drop with Belltech springs/DJM spindles/drop shocks. WWS Progress thread http://67-72chevytrucks.com/vboard/s...d.php?t=140448
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