I own a stock 07 double cab SR5 2wd with the 5.7L; at the risk of sounding foolish my question is: Does this model come standard with a limited slip differential or was it an option? If it was an option for this year how can I tell if mine's got one? After searching various reviews online I cant seem to find anything that definitavely says whether it came standard or not.

I dont plan to do any serious off roading, but I know this summer I'll be hauling around a camper or two up in the mountains and there might be a few unpaved roads to explore (not hauling anything), nothing major just some mud and gravel maybe.

Thanks for your input

There is a standard electronic LSD....essentially the electronics emulates a mechanical LSD by detecting wheelspin on one rear tire, then applying the brake selectively to that tire.