My original '72 rear springs were sagging so much that they had a backward arch in the front half. Although I liked the stance, being lower was creating interference problems with my add-on sway bar and traction bars. A junk yard '70 2-door was sitting up nicely so I got the springs off that. Swapped them in and the car sat as low as before or even a tad lower. Did notice, when the springs were side-by-side, that the '70 leaves were a little thinner than the '72s. Didn't want to buy ANOTHER pair of springs so I cut the eyes off of the '70 main leaves and added them as fourth leaves in my original '72 springs. Just finished installing them. The car sits a little higher than I'd like in the back, which isn't too surprising with doubled main leaves. If it doesn't settle and stays TOO high I'll add some lowering blocks.
I learned this method from a couple of guys at a car show....gotta love learning things about hot rodders who were there in the beginning!
I'm pretty happy with my BFV springs. Haven't done enough driving to start really fine tuning the suspension yet, but They'll probably stay. Maybe minus a leaf.
