In the last few days my 83 6.2 has started leaking coolant from somewhere at the rear of the block. I lose about a cup of coolant every couple of hundred miles. I'm pretty sure it's an intake gasket that leaking that is aggravated by the cold weather. I remember talking with Rene once about something else on the back of a 6.2 block that can leak coolant. I've never had to wrench on the 6.2 so I'm not sure what the differences are between it and a gasser. Does anybody have any info?