I put a steel PST driveshaft in today, my 70-75mph passenger seat shaking vibration is still there.
I get this in most all my cars (one truck, two cars) on certain roads. It annoys me to no end.
I put a steel PST driveshaft in today, my 70-75mph passenger seat shaking vibration is still there.
I mean lots of slop...
I get this in most all my cars (one truck, two cars) on certain roads. It annoys me to no end.
I put a steel PST driveshaft in today, my 70-75mph passenger seat shaking vibration is still there. But I did make a few 70-130mph pulls and no vibration I could feel, I dont plan on going faster than that often so I'm happy with 130.
FWIW the steel PST was 21.7 lbs, the stock DS was 36.9 on my scale. 15lbs is 15lbs It looks like something else other than the driveshaft is causing my 75mph vibration though..
Nice.. I think the tires are the culprit for the seat shake. I used to get that too, and now that the tires have some wear on them, it has gone away.
I have had 3 sets of completely different wheels and tires on this car, the stock 18s, 18" DRs on the rear with different OE wheels and the GT500 wheels that are on it and they all shake the seat right at 72-73mph.
I would not have believed this if I didn't experience it myself. When I lowered the GT500 and replaced the panhard bar with the watts link I had a vibration around 70 mph. About 400 miles later I had it aligned and the vibration is completely gone. The only thing that was out on the alignment was left wheel camber. Total toe was reduced from -.19 to .13.
Like I said its not that bad, when someone is sitting in the seat they dont even feel it. It just looks bad when you look over at it, not the first car or truck I ever had that did it for sure.
That's EXACTLY what mine was doing.
I have had 3 sets of completely different wheels and tires on this car, the stock 18s, 18" DRs on the rear with different OE wheels and the GT500 wheels that are on it and they all shake the seat right at 72-73mph.
It sure feels like tires, I have had these GT500 wheels/tires road force balanced twice, second time I did them myself, and it still does it. When I put the aftermarket PHB on the car it made it worse so I'm guessing its coming from the rear. May be a brake rotor or axle thats out, its not terrible, but the speed limit is 65 around here and naturally right at the usual 72-73mph flow of traffic speed is where it does it worse.
I'm just happy the driveshaft didnt make it worse