So took the SRT-10 into my guy to check the rear end. Some of you may know that the last 2 times at the strip I was having issues with the truck and high speed handling. We first thought it might be the fifth stabilizer shock in the rear. I have QA1's on the four corners but the fifth shock is the original factory one. Well that checked out OK. Next we checked the sure grip differential....and what do you know.... the clutch pack appears to be shot! Spin one tire and you can hold the other one still....so I'm not getting any positraction action....this must be my problem. The differential clutch pack is the original one from 2004 (9 years, 67,000 miles and about 300 runs may have taken a toll.). I'll know more on Monday.