The lower blocks need to be made of solid stock, as you drive the truck the blocks made that are hollow will crush some and the rearend will start to twist. You can buy a kit for around 20-30 bucks. BBBob
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72 SUB. 402-400 p/s p/b tilt front/rear a/c
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72 SUB. 402-400 p/s p/b tilt front/rear a/c
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