I was looking at getting new 3.73 gears and differential but i was wondering if i should just go straight for an 8.8 real axle with 3.73 gears. cause i plan on putting a lot more power to my car in the future at least a supercharger if not engine swap. I know it would be cheaper to get a GT but the car has sentimental value that i can't get rid of it.

 

Go with the full axle. It will be cheaper in the long run.

 

Save the time and expense of upgrading later. Put the 8.8 in and then when you upgrade the power level you will be set. The cost will be about the same anyway.

 

Yup do the 8.8 right away. That's the one waste-of-money that I wish I wouldn't have done -- putting money into the stock 7.5 for toc and gears instead of just getting a 8.8 to begin with.