Re: F150 springs on a ranger???
F150 coils will net about 4-5" of lift on a TTB ranger. You really should have drop brackets at that height or turned arms. They work and most can still adjust the camber to be close. They ride like a dump truck and the top plate doesn't quite fit. In the rear they are most likely a 54" leaf and rangers have a 56" leaf so they will work but suck the shackle foreward, ride suffers as does flex.