I bought my 01 truck off a 74 year old man with 8000 miles on it and I have never removed any leafs. He had some belltech shackles on it and I installed long bars. I used to have troubles launching with the power turned up, it would bite, then bounce off the snubbers and unload the suspension causing it to shake the tires. I trimmed the bumpstops and that seems to have pretty much fixed it for the most part. I put a dab of grease on the axle tube to figure that out and you could see after a pass where it hit. I haven't tried that since I trimmed them, however. I wouldn't be surprised if some of the big power trucks nail them all the time. With some wieght in the bed it will touch them on a good speed bump. There's not a lot of travel back there when lowered and trailer takes even more away.
Kev
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