Considering it. I used to run a shop that is still in business and they still do that.Maybe try the road force balance and see if anything shows up.
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Considering it. I used to run a shop that is still in business and they still do that.Maybe try the road force balance and see if anything shows up.
The axle flange could be it and will check. The thing that gets me is the 45-55+ to 60 mph window of the vibes. When the flange was discovered on the Tahoe Twin, Tahoe, was it at all times and got worse as speed increased or was there a window like mine. Plus, these axles are in a K2500 semi float axle.
I am at this same point in my GMC Envoy (read my thread over on the other forum).. I have even replaced items not related..My inspection of my girl's 1990 K2500 started at 9 am. First thing I did was decide to swap front and rear tires and while taking off the lug nut at a left rear stud, it came off harder than the rest. Ran a die down it with silicone grease as a lube and then used a tap with grease for the lug nut. Is a through nut because has the center cap held on with the plastic spin on lug nut covers. Put it all back together and after cleaning up the one stud with a wire brush and adding a dap on anti seize to all 24 studs and installing all covers and caps, went on a road test. Seemed to change slightly but vibes are still there between 45 and now 60 mph and now it seems to actually smooth a little with light acceleration. I played with the throttle and came to a conclusion that problem may be mounts or driveline related. Got home and up in the air again. Motor and transmission/transfer case mounts are rock solid. Used a large flat blade screwdriver and torqued on the u-joints and found absolutely no play. Then spun the driveshaft at idle and slight accel and is true as can be, no impact marks and no weights missing. Every spring mount, suspension piece, steering piece and anything else that moves or holds something that moves, is tight and looks good. I believe it is gonna have to get worse before I can find the problem.
I am open to all insight to what this could be. I will likely go to sleep tonight thinking about it. I do that a lot.