has anyone here ever shipped a 4l60-e transmission or know the gross weight off the top of the head for any reason? i ask because i recently shipped 2 of them and was told the gross weight was over 400lbs. I know this can't be correct because my 52 year old mother picked one of them up herself and moved it... I had no trouble lifting it and carrying it back and forth several times, and believe me, i'm quite out of shape. I regularly lift 100-150lb boxes at my work, and I'm positive that the transmission didnt weight anymore than that, I'm guessing in the 100-120lb range. The shipping cost came to a total of $474.15, whereas the last time I had one shipped it cost only $85.00, which i assume would turn into $170 for two, but nowhere near $500.