blown engine

[slowpoke]

climbed mt Pocono pa everything seemed fine was at about 1550 rpm oil pressure was around 38 then oil temp started to climb more than normal and hit 249 degrees coolant was at 220 .coolant then dropped to 178 had fan on but oil temp wouldn't come down, held motor on flat ground 16th gear just kinda coasting along trying to get to next exit so i could take a look then oil pressure started to drop 33- 30 -28 hit the shoulder but to late heard a load screech followed by 2 big bangs shook whole truck got clutch in motor locked up. coolant still full and red, oil looks like fresh out of jug and just below full mark. no block venting. waiting on quote from dealer, apparently 2 smashed piston's, crank ruined , they haven't been able to tell me why it went yet.