On my RS4 3 SS, my front diff is alot tighter than the back and I was thinkin it shouldn't be like that.Not sure why it would be like that though

It is supposed to be like that. Somewhere on the HPI website or the instructions, it says it is supposed to be like that and you can tell the front from the back by whichever diff is stiffer.

Ahhhhhh...yes,thats the spring I put in the front one that I forgot about.Thanks man,I just forgot about that spring

yeah when you build it you put the spring....when i built mine i had the sam question