The compressors need to be at 1 and 7 o'clock on the passenger side and 4 and 10 on the drivers side. If you drop the steering arm on each side, one at a time, it gives good clearance. If you are replacing the bump stop, use the short one as original as the longer ones designed for lift springs will bottom out and need to be cut to fit. Installing the bump stop after the spring is in only requires put the bump stop in the middle of the spring when installing them. After the spring is seated slip a board between the coils and jack that side up and it will pop right in, if you have put a small amount of grease on it before you put it inside the spring.