mattbta
Full Access Member
Tie rods are new within the year. Pitman/Idler, within 2 years - on the third set of those. Everyone that's looked at it claims there's no slop.
Shaking above 50mph
- Thread starter Jay R Lawson
- Start date
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rockola1971
Full Access Member
Have you been greasing them? Jack frontend up and get weight off wheels and push tire inward and outward toward the front of vehicle and look at idler. Is it bouncing up and down as you do it? How much deflection?
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I've replaced everything 10 k miles ago except hubs so I'm hoping that's it.
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iamdub
Full Access Member
If they're warped (or out-of-true from deposits) enough, then they can be off-balance at higher speeds. I had a shake that got better after having the tires balanced, but was almost eliminated after new brakes went on.
Something to keep in mind. My rotors are only a year old but they might have gotten warped, who knows.
iamdub
Full Access Member
My new ones were installed a few days before a trip to Tampa, Florida. I got less than 1,000 miles out of mine before they were warped again, and 700+ of those miles were highway miles with no braking. The only time I ever got on the brakes "hard" was when I was bedding them in the night I installed them. I first noticed it when easing to a stop at a red light in Florida and they were perfectly smooth prior to that.
rockola1971
Full Access Member
Which rotors did you guys use? Those cheap made in china ones warp very easily. Our chassis EAT up idler arms especially if there is something else wrong in the steering/suspension setup. How are your bushings? Upper/Lower control arms AND stabilizer bushings? Link kit? One busted?
mattbta
Full Access Member
I'll check the idler soon. It's about two years old. Rotors are Wagner. End links/Sway bushings are energy suspension (6 months on the truck) and UCA's are new. LCA bushings are stock - 12 years old.
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rockola1971
Full Access Member
Unless the frame is bent or a tire is bad, youve got something wrong on the front end. I bet its the idler arm, especially if you travel down rough roads or offroad a fair amount. Check steering play at the steering shaft AND at the steering gearbox. The way to check the gearbox is center steering wheel and have someone turn it back and forth just a couple inches where there is play before getting taught. Then look down at the steering gearbox input shaft. If the the slack is there you will see the steering shaft (from steering wheel) move before the input shaft does. If the slack is in the gearbox then you will see the steering shaft move back and forth (attached to input shaft of gearbox) and the front end isnt moving so there is play inside the gearbox. There is an adjuster on top of the gear box to take some of the lash out. The adjustment is very fine, watch a video on it BEFORE you go there if you have to.
Warped rotors on braking and replace all 4. You can get drilled and slotted with new ceramic pads under &200. Easy to put on but change your break fluid too. Shaking over 50 mph is generally tire out of balance get all 4 checked. I have an NNBS and didn't know what it meant so you're ok.
