All leafs are 2 1/2 inch including Jav, AMX, Gremmie, amd Hornet. The American is 2". Like I said, with a Chryco kit you can make the wide springs fit. Front springs I am not sure. The V8 Jav (68-9) with trunnions is identicle to the I6 American, but shorter (I know, different sprung weight) But I was wondering if the I6 Javelin is shorter than the American. My V8 Scrambler coils were identical to the I6 sitting side by side, but obviously a stiffer ride. So why shouldn't the I6 Jav be a good substitute for the American, might even be a tad stiffer-I don't have a reference book.....Russ __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com