5100 at 1.75 4x4 info

My brother and i just installed a set of 5100 on stock coils on his sr5 prerunner access cab at 2.5 and i really like the ride and look. the install was not bad at all either- no spring compressor needed with a hydraulic lift!
I am hoping to get the 5100s for my 4x4 sr5 access cab but want to avoid problems with cv boots and the vibrations from the drivetrain. Do people have any problems at 1.75? or even at 2.5? Is there any problem with the 5100 at any level on a 4x4 with no rear lift? i will not be getting the rear tsb for my 2011. My truck is a 4cyl 4x4 auto AC if that matters...
thanks for your help

 

i have the same truck at 1.75 and its perfect, but I have the TSB. I would highly suggest getting it IMO for a good look, but others dont and still like it