I have a 1987 S15 4x4 with 125,768 miles but i just bought it from someone who said the tranny was blown. After some investigation i found the flywheel to be broken in a wierd way. The lady said the truck ran untill she shut it off so i don't belive the crank is broken however the bolts holding the tranny in place were so loose it took maybe 4 turns of the finger to remove them, My question is could that have caused the flywheel to break at the attachment bolts or could it be because the tranny locked up. The tranny seems to turn fine although i haven't had it turning because i need to replace the flywheel i just don't want to replace it only to have it fly into the cab. Any help would be much appreciated as i have never experienced this problem.