Need some leaf spring advice

ro23dart said

I need to replace my leaf springs on my 72 Demon because the have ceased springing. I have an 8 3/4 rear with SBP axles and stock 14 inch wheels. I plan on doing a BBP swap in the future and getting some larger tires. I was wondering if at this point it would be a good idea to just go ahead and do offset shackles and brackets so that i will have a little extra room later on down the road. What do you guys think?

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You can put 275’s on most Demon’s without offsetting the springs if you get th backspace right. It’s a little tight on some but it’s very doable, and if your car isn’t lowered it’s not a big deal. I run 295’s on my Duster with a 1/2” spring offset, but I also had to trim about a 1/2” off the quarter lips (my car is also lowered).

So, a 1/2” offset on a Demon would probably allow you to run 285’s without trimming anything, or maybe 295’s if you don’t mind some trimming of the quarter lip. But a 275 is a decent amount of tire, so, the spring offset doesn’t really buy you a ton of space or tire. I did mine because I was swapping over from a 7.25” rear axle with a B-body 8 3/4, so I had to move the perches regardless. Just depends on how much tire you need to have.

ESPO is a good choice for springs. Not sure where you want your ride height, I would say stock or maybe +1” if you want to put a bit of rake on it. More than +1” will take you into ‘70’s street freak territory.