04-07-12, 04:08 PM
In rebuilding my 97 STS N* engine I bought a crankshaft off ebay. The crankshaft did not come with a crankshaft bolt and my original bolt is too small for this crankshaft. Seems that there are crankshafts that have 14mm bolts and ones that have 18mm bolts. I have called all the GM dealerships in my area but all the bigger bolts that they have are about 3 inches longer then my original bolt. Anyone know where I can find a new 18mm crankshaft bolt? I would like to get a new one as I understand they have to have quit a bit of torgue on them and dont want to risk using one that has already been stressed. Any help very much appreciated.