Hi. I have a 1999 gmc savana 2500 4x4 quigley van which I have put appx. 20 k into restoration and goodies in the last 14 mos. since purchasing, as a 3rd owner.I now have a serious shaking problem with what feels like rotors or drums since I changed rear brakes
. Every thing is new, and I mean everything! Area mechanics & brake shops can't figure it out. All the front end parts are new ball joints, bearings tie rods and ends etc... power steering
pump, steering gear box, tires, balancing, air pressure all ok. New engine
, tranny, u joints exhaust
, fuel pump, radiator, hoses, belts, rust proof frame, body work, paint, etc... You get the picture.One mechanic said I may need them to be machined on the truck. I just sent away for high performance drilled & slotted rotors & semi metalized pads.It has a Dana 44 solid front end off a 91 4x4 suburban 2500, a standard quigley conversion. The lift is 6" with leaf springs all around.local mechanics have said and quigley has implied that the Lt 305 ' s I'm running are the culprits, but I switched my stock Lt 235 winter mittens on and have the same shaking. At the end of my rope and really personally embarrassed after all this time and money. Any ideas?