The most members online in one day was 3,106, 01-04-2013.
#464, '13, )(DURAMAX05)(, 01 D_Max, 01BigD, 01Duramax_LB, 01k3500, 02DmaxDually, 02dmaxsmoke, 02Duramaxdually, 02duramaxfan, 02wcdmax, 02_2500HD_LBZ/Alli_crew/8, 03BlkMax, 03Dirtymax1991, 03dmax1989, 03gmcduramaxs, 03pewterduramax, 03tothemax, 03_dmaxhd, 04BlackSmoker, 04BlackZ, 04ccdmax, 04lb7dmax, 04llyjm, 05chevy3500, 05dmax89, 05DMAXDually, 05DmaxxLLY, 05maxer, 05MonsterDmax, 05Rattler, 06cc4x4, 06CCLBZ, 06CHEVYLBZ, 06dcrew, 06LBZdmax40, 06MaxFL, 06whitelly, 06_DRW_LLY, 07dmaxclassic, 07GMCLBZ, 07IDClassic, 07keo02, 07LBZSD, 07metallicgreen, 08' D-Max, 08buckmaster, 08lmm/white, 08maxdully, 09DMAX5, 1000 Arctic, 1085farmer, 10OAKS, 10Ring, 12345, 12vRambo, 13BlueGranite, 14chevyluv, 1978steven, 1999sierra, 19ltodd, 1Dmaxx, 1GMDriver, 2001Duramax*, 2005LLYZF6, 2006dirtymax, 2006DMAXLLY, 2006LBZ2500HD, 2008jbr, 2011denali, 2011DMAXHD, 2011HDSLT, 2011lmlblue, 219LBZ, 223, 2300Hz, 24vpurplerippin, 2500-HD, 2500DMAX, 2k5dmax, 2old2giva, 2SUTHRN, 2thirteen, 2trout, 306lmm, 315dmax, 33yrmz, 3406Cat, 3seasons, 420rancher, 440skidoo, 4455Deere, 45cal4life, 48548, 4theHardWay, 4u 2 nv, 4x4LB7, 56gmc-on38s, 6.0 BOWTIE HD, 618dmax, 666drifting, 68rustbucket, 69C20, 6dot6, 71 mgb, 71dsp, 73guna, 7510derrick, 77chevyman, 77cruiser, 784x4chev, 785max, 78transam, 82w126, 86trbota, 89hollywood89, 92 TY 1173, 99coalroller, 99f350, a.cosworth, a1immortal616, AaronB, Aboscamp, adamz, adam_chevyss, adj_6x6, AdkWoody, AfMedic, Ahalla05, ahoffer, AJ 72, ajajaj28, AJKaiserLB7, AJulson, akcooper9, AkNick, AlbertaDMAX08, aledford, ALHeadUSMC, allenclme, Alliance1289, alpark, alpharado, Alti2de, alyesko, amp713, andrew24dub, andy-stevenson, angerman, anthonyshaw, Antman, antnylsu, apelineman, Armalite, Army Diesel, aroyal7, aski_2003, asmech66, aspeyrer, atb, Aussie Reg Cab, AWM, awoods9009, B-Weir, b14, Baadgoat, bab91, bad lb7, Bad76Bowtie, badbk, baddaddiction, Badheartbull, BadTouch, Badtoy, ballisticpiece, Bama 12, Bama4door, bamadiesel..WFO!!, BambiAssassin, batescd, batman08, battlegraduate09, bbgto, BC-Duramax, bcf, bcruse84, bdgmbdgm, beanpole209, Bear9350, bearwolf50, Beeman, Benh3, berttracy, bfmine, bgarner6581, biffvigil, Big Angry, Big Bear, BIG PHIL, big18jake, bigblackmax, bigchris71, bigdaddydiesel, bigeddie1300, bighefbanshee, bigjohn, bigmackmiller, BIGREDLMM, BigRedSilverado, BigTime, bigwhite lly, biketopia, BikinCO, Bill81vette, Biodiesel66, Black lml, BLACK04DMAX, Black999Duck, BlackBetty06, Blackcloud556, Blackink, Blackmamba 02, BLACKMAX1, blackmax123, blackmonte, blackout d-max, blacksmokelb7, BlackToTheMax, Black_Sunshine, black_tan496, blk04dmax, Blkdout02, Blowin$moke09, blown65stang, BLUE-MAX, blue1911, blue2184, blue8135, bluecap24, BlueGraniteLBZ, BlueMaxer, bluessmax, Blumer, bmemmott, Boatman2089, Bob Galet, bobby25, BobbyB, bobgrande, Bobolallawa, bodollar, Bonomax, BoomerD, Boomtown Rat, BoostedDmax01, BoostJunky, boostn54, boostnlb7, Boostnsmoke, boostnsubaru, BorderlineReckless, Boreen, Bosis21, BossHogg715, BowtieBrother, bowtiedmax, Bowtieguy1987, bpe1, bpipeliners, bradenbley, brads01ws6, bradyn, bramer3291, brandon06dmax, Brandon2008LMM, brandon41582, brandon750, Brennan, Brent@LDS, bretmax, Brettkerch2011, Brian Bond, brian k, brokesmoke, brolla, BROWNING338, Brownman, bruceh, bsj04, BSLONE, bstanton, bsul92, BThompson, bturner, BuckeyeDiesel, buckeyeDmax, buildingup, Burco_D-Max, Burt 2011 Lml, busdriver75, Bustedknuckles, butler145, Buzzard101, Bville99gt, ByrdDog, b_r_a_d_79, C12H23, C20ELEPHANT, Cadams59, Caddy85, CaddyTech, CADIMAX, calewjohnson, calundeen, camaroz1985, Camaroz2866, Cambirdracing, CamoLB7, camo_dmax, Canamdan, Candimax79, Capt.D, CaptPhil, carid, Carpenca, Case-IH95, CaseBlackKnight, Cayenne, cbmoore2011, ccclark6, ccc_2511, ccjumper, Cdn_Blair, cdv62, Chacon, Chad3304, chadc311, chadsdurty08, champ30521, Chapman_4, Charliechevy, Chavez91, chawk220, ChemTec, Chevanater2500hd, chevy-2500-hd1, chevy2MAX, chevy67deuce, Chevyboss, chevyduramax21, ChevyHD, chevyracer005, 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drranch, drscss, DRTYMAX13, drtymax199, Ds Max, ds10wyo, DT Scientist, dthib0311, duckhunter00, DuckScrubber, duff man, DUGB, Duke301, Dura13, DuraCal, Duramask, Duramax Dad, Duramax., duramax111, Duramax19, Duramax2oo3, duramax3030, Duramax381, Duramax56301, Duramax81108, duramax916, Duramax963, duramax9878, Duramaxallison08, DURAMAXD219, DURAMAXDANio, DuramaxMan2008, DuramaxNoKaOi, duramaxtow, DuramaxTracker, DuramaxVehTech, duramaxVT, duramaxX12, DuramaxxDan, Durameister, duramxlove03, Duraskank, durawelder, durmax10, durtyDmax, Dustin., Dustin88d, Dustindenali11, DustyRhds, Dutchdmax, Duttymaxx, dwalt1979, DylOrr, Dzlpete, dznuts, D_Wags_DirtyLB7, e46_330i, Eagarhome, eastex, east_1151, ebaker2006, elake, Elam27, elkhornsun, Elli, elliottw, elvispolaris, emcarthur, Endica, engfuel, eric-satx, espey34, espy59lc, Ethan01, Eugene13, EvanK, Ezkieler850, factorymur, FAIRCHASE, Fall Guy, Fandango, FASSFUELGENE, Fassigfarms, FC5452, Ferdwerd, fflmlf, fidget51691, fightingirishjb, Fillmore2221, FIRE17LA, FireRescue, Firescooby, flatmax, flattracker168, FLETCHxj, flyin6, flyinelvis11, fmoore, Frankin_truck, franklint06, freebird_78, FrivolousShrimp, FROGMAN524, froman125, ftpdiesel, fulfdiesel, gabeyazzie, Garrows, gasrat88, Gater96, gators, GB87, gdaddy87, gear jammer, gelly, george yeoman, Georgia Duramax, ggreene3, gibben, gitrdoneracing, GLASSMAN JR, GMC 08, GMC Gold, gmc.jakk, GMC05Duramax, GMCHD driver, GMCRIG, GMCustomerService, GMguy, gmshopforeman, GMTech07, GOB_lly, gonemob, Goose2448, gottahaveboost, goushdds, gr8shot, Grasshopper101, graymond1212, greendog, greggf34, Greghicks92, Grizz2225, guga1979, gunmetalsi, GunnerXLT, GunRunner7, guytonLBZ, gwinb, H&S Support, h20addict, h2oandy, Hagemann, Halfswing20, Hallthehogster, hamburglar, Hammer7896, Harold 66, hasher, hatfield, Hawker, Haymaker21, Haywire, Heatseeker, Heavy07Chevy, HeavyChevy2500HD, heavyevans, hefffree, helge55, helomax diesel, henry67, HFLBZ, Hibneck1, highridintahoe, Hildom18, 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lhoran90, lilmike113, lime4x4, Liquidrider12, little0113, ljg426, LLEG80841, LLYDIRTYMAX1, llypower, LML DUALLY, LML'12, Lml11, LMLDirtyMax, LMLFanatic, lmmduramax, lowgear05, lp14255, lparrill, lpslacker, Ls1Camaro, ls1camino, LT-x7, Lucky 13, lusifer, lutzjk913, lycan03lb7, m23kos, M3116, M3killer, mackthehack, mackyoudip, madd max, maineloggerlbz, makito, MannyGarcia, marinalift, marine4x4, marshallb, mastercomputerwizard, masterofyard, mat2.4, Matchrocket, mattchevy, Matthewxp, mattmac1989, Mattmacormic, MattMaxxx, mattsmax, mattzach3500, matt_28_01, MAV_15, Max03, Max2Dirty, MaximuSD, MaxLBZ, maxmaximus, maXstaX, Maxwell.Riddle, MAXX Spool'd, maxxdiesel, maxxed747, Maxxer442, mbarron634, MBCLBZ, mbh82486, MC909, Mclovin1414, mdowlingplum, Melly-mel..., melon16, melton232002, Meshanic, Metrix, Meyerperformance, middlerivermerk, Midwest Transplant, mike diesel, Mike L., mike1340, Mikka07, Military_4_Life, Minerigger, mishkajb, mjcarlson, mjonesjr, mkayler, Mmumaw, mnickd, MNSteve, modoh123, MOELB7, MonkOnAToilet, Montana881, MontanaCanterbury, Moonshine, Moose2013, moose3006, morpheus51, mott555, mower hauler, mozzack15, mpeters0991, mr wang, mrmanners, Mrs Tow Master, mskoning17, MTChevy, MTDmaxLML, MTL_Dmax, Mudbum, MudDoc, Mudrazer, munizedward, muttman05, muxruk, MuzzaJ, mvetting, mwar410, mworkman, mwv, mybevali, n0useforaname, n2_hunter, N49ATV, Nachos1990, NAFLASH, nailski, nastydirtymax01, NastyMAX, nastynotchback1, nateman101, NBstunter, NCboy, NCDURAMAX05, ndhauler, nealsonfire, ned911, Neil05, New to me GMC, nfamus10, nicgelde, nick1camper, NickCE11, Nick_04k, Nj09LMM, Nklpltd, NMdiesel, nmeyer414, No Moa, NorskeNY, Northwest Coal Roller, nova88, npppllc, nst4708, ntsomelo, Nucca_P, Nunez1422, nvrgasagn, nvrplzd, ocajaa, offthewall, OIL99, Oilcan, okiesooner, OldBlue56, oleblack03, olliepop2500, Omeara_86, onebadds10, Onebadlb7, onedirtydmax, onthefritz, oobreedenali, oring, orrick541, oruna1, ospiggle, outlawed_LLY, OzzyDmax, p06267, paintballrepins, paoutlaw, PARTS-GIANT, Pat H, patrickATSDiesel, PatrickF, paul06d-max, paul_b, Paych3ck, pbatathunder, pdavester, peabodyjsmith, peckwh, perkalator, pete37922, peters09, pfny2, PHELPSY, Phil@dieselcore, pigpen23, Pike8888, pinky, piotrowski102, PirateDiesel12, pjmayher, pluckin, PlugItIn, PMacy, pmartin6969, polaris7x, poosniffer, Poppy's Vette, porkeysr, Porno Joe, PPSD, premis, primetime_2, proffitt6.6, project hellhound, prospo, psi4pwr, Psychoink, PTricky, pud383, puff11, QACZ71, Quast, QuikDMAX, quinton, Qwik2Get!, R Shanta, rabs, Racer62, racermatt, Racershawn, Raider1975, ramblinrodney, Ramboz28girl, ramsdell_, rando's max, Rando81, Ranger007, RareBiscuit17, ratnfested, RaVaGe, RBinTX, rbrewers, rd05lly, rebpdt, Redbaron, reddogg121212, redmax08, RedMax316, redneck6821, Redneckified, redtopz, Rescue Man, Retired Fire Captain, REW_388, Richard Druckman, RICHH, ricjon474, rickaveryjr, rickross667, ricky_lamm, ripmf666, RJaredK, rjschulte, rkhodges21, rkratsas, rlake2020, rllongak, 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SmoknLBZ, smookinup, SnafuPossum, SnipeDmax, sno-x139, SnoChev, Snowman7, socal lly, SoCalMike, Socalmx255, sofakingbad, soto3389, South Bend Clutch, spacecase544, SPARK PLUG, SpecialEd09, Speedpro1, spgirard30, spiller09, Spion08, Spoolin4, spykesktm, squatn20s, squez85, SqwkVFR, Srhughes, SS317, stags2, stang233, stanleyrock, StealthBoogie, steelers1074, Stepchild 283, Stevebyra, stickynicky, stingpuller, stlaser, stnman4, StompinRound, stracer1523, straightshot7, streetbrand1, streetrodchev, streetscrapin16, Strictlydiesel, strokeorcroak, Strokernomore, strutindmax, studentone35, suck-squeeze-bang-blow, Sumabitch its a Dmax, Summitkid1, Super B, super v, surprise duramax, suv2nv, Swampy, swenson24, swill88, SwitchBack, T-D76, TADAMS72, tailpipe98, tailtap, TakeEm, taken2D_MAX, taterdigger, taylor13, taylorhagen95, tazzdevil08, tbred123, tbrowne, tc66nova, tdeal823, TDFDiesel, Tdrost, te-44, team_wiley, TedM, terryk, TEX LLY, TEXAS Max, tfskidoo, Tgough18, TGris, The Don, The Dude1, The Red Baron, The S.O.M., The Witchdoctor, Thebiggids, THECHEVY, TheStepChild, thirdcoastangler, thomas5853, ThomasH, thunder550, tikki29kpy92, timwly, tinman07, tjlakia, tlipps, tmm403, tmsroks111, Tnduramax05, toddk, ToddRanch, tom777, tomz28, Tonkatoy77, tonyjrd, tonymontana13, TonyNJ, torquefreakz71, toxic diesel, toy hauler, trailler2004, Travinsky, travis06lly, trd55, Trev006, trickydave, tripleturbo, tripplea79, troy5118, TruckYeah, Truff1010, TS0405ts, tsac89, tsranch13, TTUD-Max, Tucker SMG, Tug Toy, turbod2500, turboshad, turbowtie04, tweek, twin64, Twist161, TwistedWhisky, TwoFortySX, Tx driller 13, TxAgg05, TXBowTie, Txdieselkid, Ty'slmmlive, tyler486, t_tone, UncleBo, underaltec, union andy 592, USAF-DenaliDRW, usafracer, uscmas412, usmc-dmax, utskiman, Varty Yo, vbortch, Viergutze, VIG, viking00, Vizior, voltage, Vroom88, W8S LTZ, walkaway, walkers white chevys, wally_gator, Wantamax, warsw, Waterpro, Watty, wayfastwhitie, WCCoffey, WCSting, weldman, werewolf, Wesduramax4020, wesz, wforty94, wheels25, WhiteHD11, WhiteLBZPower, Whitesnake, Whonnock Boy, WI Huck, wieda, WildChevys, Wileyman500, willfly4food, williams0517, willis_bud2, willsdiesel, windowbarn, wodan, WOLFN8TR, wpeschel, WTF, wtgvr4me03, WVRigRat05, WydOpen, wylde3, wyobigk, x454gtox, xoticautowerks, Xsniper, xzaq103, Yamihaw, yarmish, Yellarock, Yellow is Good, yfzkevin, Yo-Adrien, youshine, Z3K3, z71amigo, zachr4x4, Zacksiebels, ZC-DMAX, ZDDuramax87, zeake, zebiraross, zeke38, zheier, zrichardson, ZSF234, Zytek_Fan

Jonnyt41, Kylemanspiderman (19)