LOL.... Ummm……. your responses lately says more about you than it does the suspension as well. Read what you right, then take a chill pill and re-read it.
The op asked a question, and we answered it as well as you. We all gave our opinions and experiences. He'll decide for himself. And to the op, I have a B-body rear end myself that i'm going to drop in in place of a 7.25. And I was so happy with the way they turn out by 1/4 inch oval of the perch, it's the way I'm doing it again.
I do read what I
write, perhaps you should too. I considered what I said this time pretty carefully because I've argued against people taking lazy shortcuts on perch locations before. It's obvious you just slapped those leaf springs on without checking for any binding in the spring action compared to leaf springs mounted properly. Your springs aren't working at their best, period. If that lazy shade tree operation is good enough for you, awesome. But just because you don't know the difference doesn't mean there isn't one, and telling other people your lazy shortcuts work just as well as doing it right is total BS.
I have put a 1/4" worth of bind on the leaf springs on my car when I was using those poorly designed " 3/4" " Mopar Performance offset hangers and shackles that use a 1/2" offset hanger and a 3/4" offset shackle. It's noticeable on install, and it's noticeable in the spring action if you bother to check for it. I did, and I got rid of that binding when I switched to spring sliders and lined everything back up. It makes a difference. Do all kinds of people run with that bind? Yes. It just means none of their leaf springs are working as designed. Given that most of these cars are infrequently driven and poorly set up, it's not a surprise that people don't notice or write it off as it being normal on an old car. Doesn't make it right.
I didn't elongate anything either.
1/2 inch per side is pretty close to the factory tolerance, judging by how off center I've seen some.
Not on the axle perches it isn't.
Yes, it is fairly common for the axles to not be perfectly centered to the body. But that's almost always because of
body tolerances, not axle tolerances. All the factory axle perch widths I've measured have been within an 1/8", and I've measured dozens. Most are exactly at the factory specs. Wheel housings and quarter panels on the other hand are frequently off by a 1/4" or more, and if an axle isn't centered to the body it's usually because the
body is off. And that's not the frame rails either, the axles are usually well centered to the rails. The body tolerances are all over the place, and people notice that because of tire clearance issues. But that's a totally different issue.
Dropping an axle with the perches at 44" c-c and spreading the leaf springs out a 1/2" per side because they're mounted at 43" c-c isn't anything close to the factory tolerance.