I found myself with a day off this week.
Drove the jeep down to M.I.T. As usual the jeep would shake violently once I hit ~47mph. Then as the tires warm up, I can safely get a little more speed out of it. On slight left or right turns at ~50mph it would want to start up again.
The people at M.I.T. were really nice. Jeff took my car for a drive and said it did not go into full shake on him. By now the tires are warm after driving ~20 miles. After a brief inspection he said that the Savvy track bar in single shear is not the best way to go, and that there may be some flex there. Recommends a Rubicon Express track bar with new mount welded onto the frame. Also said that they recommend going with a new Monroe Steering Stabilizer, as opposed to my new Rancho unit. He said that the Monroe unit has heavy damping, and didnít know about the Rancho. He also recommended that I get my tires Ďtruedí then balanced by a local shop. He explained that they have seen some problems with the MTR tires.
I started driving to the tire truer shop, and on the way I passed by ORW. I decided that as long as Iím here Iíll stop in for their free suspension inspection. They were too busy to give a full inspection, but a couple of the guys there came out and took a quick look at it in the parking lot. They asked a few questions about suspension parts then one guy took a look at the wheel balancing weights. This was a red flag for him. He noticed that there are an awful lot of weights on the inside of the rim, and that there were two piles of them 180 degrees from each other. He explained that weights should never be opposite each other, and that they really should be on the rim edges. He went on to say that the Kevlar MTR tires do not balance well and that he has seen a lot of problems caused by them. I told them that the tires were balanced 3 times by Discount since that is where I bought them. The ORW guy (donít remember his name) said that since I have free balancing from them I go back, but to ONLY the one in Santee, and only talk to John.
I get over to Discount Tire and talk to John. He understands the whole situation. They balance my tires again. The wheel weights are now clipped to the rim edges. I leave to drive home and the Jeep is like a new vehicle.
The next morning I take it for another drive, in the morning. Cold. It seems to be fixed. I canít get it to wobble.
Was it the tires? and the tires alone? I donít know. Iíve been trying to fix this problem for so long, and replacing so many parts. For example, months ago I did the dry steering test and a ball joint moved up and down about an ⅛Ē. I wanted to put on the V8 Grand Cherokee steering anyway. So I did but the DW continued.
It could have been marginal steering part(s) combined with poor tire balance?
Things I now know for sure:
1) Not one mechanic or tech likes the MTRís w/kevlar
mmmmÖ That was a short list.
Now that the Jeep is driving better, I can spend more time