Will the front springs on a 90 3.8L work in a 94 4.6L? The ones in the 4.6L are briken about 1 coil up from the end. I have a 90 Parts car. They look the same, but looks can be deciveing. Also will the 7.5 independent rear axel cover fit that of a solid 7.5 rear axel? Thanks for any help.