#10C. Crossmember for the 4L60E to 4L80E transmission conversion, 2000 up Tahoe and some others. This custom made crossmember moves the transmission mount to the correct position for the 4WD Tahoe 4L60E to 4L80E conversion. Works with the #3XX deep cast aluminum pan that holds 3 3/4 extra quarts of fluid or any other pan. Cost $360.00. On some trucks the crossmember will slide to the rear. (We need the last 8 digits of your VIN number to insure you get the correct crossmember. Price may vary with model.) This price includes a $130.00 core charge, return your old crossmember in good undamaged condition for a refund.