car jerks when in gear at low rpm's?

[onefastlx420]

yeah its a new engine, it never did this before, everything is brand new from the radiator to the tranny, no vacum leaks either i dont think everything is hooked up or capped off, i think it might be my rear end i had the gears put in about 2 years ago and i noticed today there was some play where the driveshaft hits the rear end, could that be it?


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89lx cocaine white,cobra wing/emblems,chrome 18in cobra r's/nitto xtremes, gt40 longblock from ccm,forged pistons,f303,1.6 rockers,performer rpm intake,70mm tb,75mm bullet,bbk fenderwell induction,24#inj,190l pump,bbk fuel pressure regulator,140amp alt,msd ignition/disributor,aluminum 3 row radiator,bbk shorty's,off road h pipe,flowmasters,king cobra clutch,world class t-5,3.73's,strut tower brace,subframe connectors