front tires are 235/35-19, back are currently 285/35-19. I wanted to change the back to 275/35-19. Would that be fine? with the TCS and all? Also, i found some 275/40-19's for a great price on craigslist, would that be a bad choice to put in the back? Sorry if these seem like very easy decisions, i'm terrible with this! Thanks!

 

275/35 is fine, actually better for VDC/TCS/ABS than what is on it.

 

Would the 275/40 be a bad choice to save some money? I would very easily be saving $200 with the installation by buying those tires.

 

Yes 275/40 is a bad choice unless your running 18's.

 

TCS allows more options than VDC. Look here and check speedometer: http://www.roadkillcustoms.com/hot-r...Calculator.asp

 

275/40/19 is WAY too big (tall). I'd try to get a bigger (wider) front tire as well.

 

Always happy to help. If you have other questions please do not hesitate to waste my time.