I am considering buying this 06' with the issue above. He tells me that it is in limp mode and will only drive to 2nd/3rd gear and he had to flutter the gas and coast. He tells me that Firestone said it is a leak from the transmission to transfer case, and it needs to be sealed. he said adding fluid did not put it out of limp mode. the price is $1500, "my loss your gain" story. Does this seem too risky to buy or should I wait? having a hard time finding anything decent, and the Z71 is nice. Thanks..