Fr sure you'll have major rubbing in the back with 19" but you'll solve the problem by roll-up the fenders!
I got 19's with 1.75" drop on a 39 offset and ater rolling the fenders i don't have any problems! I can say that the 39 offset is probably the lower you can go because i got only like a hair between the rim and the shock! When i look at it i did'nt think that'll pass but it does without any problem!
