LOL 500 miles! I say go for it! The tune will still be learing for a couple hundred miles and will get better all the time! I know you were talking about the LSD and the gears but I'm sure that a couple of short bursts won't effect your break in! I think it is all about heat/time and your gears won't get that hot in the short amount of time it takes to hit 100, what like 14sec or so!
2006 Superior Blue Trailblazer SS AWD, Stock as a rock
Sold: 2002 GMC Sportside Denali front end with a 2002 LS1, FLT level 5, Yank 2600, Trick Turbo, T76, Nelson intercooler, 60LB injectors, Warbro fuel pump, Eaton locker, Magnaflow, 3.42, Nelson Performance Tuning (speed density).
Sold: 1981 GMC LB RC 1500 2002 4.8L 4L60E 12 bolt 3.73 Richmond Lock Right AC PS Nelson Performance tuning
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