i picked up a 99 Sierra extended cab a few weeks ago to use as a hunting/ fishing, general use truck. The t-case was toast so I had to have it towed home (dropped the keys off to my tow truck friend who towed it later that day). When he got it to my house I noticed it was missing the front shaft. I don't think it matters but it's a 4.8 with an NP261. There is a local guy who says he has a drive shaft and sent me a pic. Looks like it's around 31" from center yolk to center yolk. Anyone have exact measurements on what it should be?? Thanks so much.