If you're planning on keeping the 3L go with 4.88's.
This way 5th gear will actually be useable.
4.56's would be ok, but what do you have now? 4.10's? That's a small jump, you'll notice a slight difference, but going to 4.88's would give you the performance jump you're looking for.
This way 5th gear will actually be useable.
4.56's would be ok, but what do you have now? 4.10's? That's a small jump, you'll notice a slight difference, but going to 4.88's would give you the performance jump you're looking for.