Gear ratios

I wouldn't go 4.10's unless it was a dedicated track car

3.73-3.91 are good for accel and still decent at cruise for highway vehicles

not op but is it worth it to buy a whole new pumpkin if i want a torsen lsd and 3.73s on my 15 or buying the gears and lsd and putting them into the old one there is a big difference in price for the pumpkin being alot more but I dont have the skill to do the labor myself so which option is cheaper?

You could probably buy the torsen and gears and labor and probably still be cheaper. Shop around and call for install quotes. Were you gonna install the pumpkin yourself?