I have an 05 Crew Cab in which I am looking to drop. Currently it has extended cab spring in the front ( which dropped it a tad more than crew cab springs ) and drop shackles in the rear. Rides on silvy stock 20s and stock 275s.

Now for the drop questions:

1. With a 2/4 drop do speed bumps come into play as far as scrapping over them?

2. looking at the flip kit, and was wondering if I have to notch? If so opinions of drop leafs?

and lastly

3. Will a 295/45 rub up front? IMO the 275/45 looks too small for a crew cab, but looks perfect on a rcsb. Thinking it would look better with a meatier tire?

And help would be appreciated. Post pics if you want

Thanks
J.