You can use front shackles on the rear and gain an inch,+ -.
Also you can remove some of the leaves and gain some,depending on which leaves you remove. And, you can make the blocks yourself, just buy the 2"x whatever, 2",3",or 4" tubing and cut it for the spacers. Youll have to get new U-bolts also. Yes, you can use the hollow tubing, theres no weight on it. Ive done it that way a few times.
