I'm looking for a bare bones truck, probably just the base model Sierra/Silverado 1500 WT 4.3/4WD standard cab. I'm basically sick of having two sedans that get stuck a couple of times every winter and having to pay delivery charges to get anything larger than a vacuum cleaner from the store to the house. I had been shopping for a Tacoma, but new are too expensive and late model used are just as bad. Between the factory incentives and the fact that I can put a $3K GM Card redemption allowance towards a Silverado/Sierra I can come out with a pretty good deal. Anyway... a few questions... 1) Anyone know what the reliability is like on the 5 speed manual vs the 4 speed auto? I know the manual would definitely give a little more kick to what is an underpowered V6, but I'm really more concerned about the long term reliability. 2) Anyone know how the G80 "automatic" rear locking differential option actually works? I'm used to a locking diff. being engaged by a button on the dash. Is this some half assed system that only work half the time, or is this an honest to goodness locker that will be effective?