97 GMC Jimmy 4.3 auto 4x4. 180000 miles Truck started slipping and squeeling while driving down highway and eventually died. I have been able to start again and motor seems to be running fine. However there is a load squeeling sound at front of transmission. torq. converter bolts appear to be tight. Any ideas? Everything had been fine up until this point. The squeel is there whether in drive or in park.