Not really. The front end is designed as a complete system. When you change the lower suspension mount to the "B" block from the "A" block, you reduce the angle of the arms, but you also reduce caster. If you were just wanting to change the arm angle without changing caster, you could install the optional C hubs and keep caster angle the same. Now, when you change the angle of the lower arms, you also have to change the angle of the upper arms, otherwise the upper and lower arms are pivoting on a different arc or plane than the lower arm. So, when you adjust the bottom, you adjust the top.