2 days ago my denali transfer case broke i got a used from a scrap yard and got it fixed i noticed a huge diffrence after driving the accelerate so fast than before do the front transfer case have different ratios?

 

Front transfer case? Are you talking aboutthe center transfer case or the front differential? If yes then yeah the front differentials come with dif gearing depending on what was ordered with the truck. But that's not good if the front and rear are different gearing ratios. Your gonna burn out your awd transfer case quick like that. Your truck wouldnt change acceleration just by swappig transfer cases so I think the front did is what your talking about...

 

this one

 

yeah thats the transfer case but as long as you got a AWD transfer case and not a 4X4 one then nothing should have changed.