Hello friends- I recently acquired an 88 90q and a friend of mine bought an 89 90q. We are wondering about the interchangability of suspension parts between those 2 cars and the 85-87 4000q since 4000q parts abound here in VT. Anyone know for sure what is, what isn't? Also, will the gas tank from an 85-87 4000q fit an 89 90q? Thanks in advance. Megan