I found a 1994 Toyota extended cab SR5 with 155,000 on the 3.0 v6 and automatic transmission. They are asking $3,950. I have done some basic research and it appears that this model of truck had head gasket problems. I have not contacted the seller yet but what are common problems on this truck? Is the mileage high for the motor or does it have another 150k in it? Things to look for that are model specific?