Going to a stiffer front spring will do wonders for your bike. It is one of the best farkles I have done to mine. It helps but does not completely eliminate the assault from tractor trailers. Like GW said, raise the fork tubes in the clamps about 15mm (which will lower the front end). When approaching a T/T remain confident. Relax your arms but squeeze the tank with our knees until you are out of the turbulence.
2012 DL1000 Adventure (Tinkerbell)
PC-V, TRE, CR8EIX , ECM, K&N, RDL, PR4, PC-8, EB H4, WERKS, Madstad 22", 17/43 gearing, AdventureTech: Fork brace, shelf, mirror extenders, SpeedoDRD, wheel spacer, Head's-Up voltage monitor, Goldwing pegs, Sonic 1.1, Wolo Bad Boy, ExTuff Helmet Hook.