I am about to buy a 1500# 18' aluminum open trailer and I will be towing a 3000# car on it w/ my '02 5.3 Tahoe 2WD. I know that load range D or E tires are preferable but how much so? Years ago I towed a 2500# car on a 2000# trailer w/ a '95 Tahoe w/ regular highway LT tires and lived to tell of it. So, can I not get by w/, say, Firestone Destination LEs or the like?