inputs.text: box well made sturdy want drop straight - ok 2 cents avalanche owners want purchase seat sub box box well made sturdy want drop straight close seat well not simple would like alter box make fit like would expect 98 altering passenger side box notch bottom lip left right box get fit front seat supports easy enough next notch areas around crown box order plastic case seat sit top flush also cut notch box sits rear support order box sit 34 inch need rear seat close completely take bit time trim want good fit seats close without jumping seats used multimax tool notch trim took 2 hours trimming placing back seat taking trimming ensure perfect fit notch trim cuss bit need pick spray bed liner respray material took could not build box price bought one satisfied end result however box 34 shorter length passenger side crown 38 instead 58 width 12 shorter box would honestly fall right place add photo anyone wanted see amount trimming required lip passenger side crown like peeling onion one layer time reach sweet spot