suspension question please help
 

I have an 87 renix 4.0 with a 3.5 in lift and I recently put new 31's on it....I took off my fender flares and I've noticed my rear end is off center by a 1/4 in. And my front by just over a 1/4 I know i can fix that by getting an adjustable track bar but I'm stumped on the rear I just have 3.5 in springs from rustys and adda leaf on the rear as well any input would help