We push the X-member up as high as it will go, keeping it up against the bottom of the cab, (earplugs) tap the X-member back and forth always keeping it up high. Helps to clean off any crud, might even smear some grease on the rails. It doesn't take a sledge hammer. We have not used any jacks yet.
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'05 2500 NV5600 Banks 6 Gun PDA, AFE PG7 II, Magnaflow, 397HP 791TQ Dyno by Dunbar.
'97 3500 NV4500 Banks Power Pack, 300HP 625TQ Dyno by Dunbar.
Perfection Clutch Dir. of Product Training