not to look stupid BUT. in the downunder, dosen't anyone have a copy of "The Book". the book is the "Datsun 1200 competion suspension". if you have any questions, it can answer it. i raced 1200's for more years than i can count. unless you are putting a chevy big block in it, the mod's work for rasing or street driving. for a street car all i did was remove the small leaf spring, put 2" blocks & a set of gas shocks. simple? yes. dfx