C4 rear end sway after half shaft u-joints
03-05-2018, 07:32 PM
#1
3rd Gear
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C4 rear end sway after half shaft u-joints
I recently replaced the hub and half shaft u-joints on drivers side. Now I notice a pronounced pull left when accelerating. This my first Vette and I'm wondering if I forgot something. I checked the motor mounts and they are good. It almost feels like the rear end (if it we're solid) is sliding back and forth. Is there an adjustment I skipped after installation? I'm hoping it will fix itself after I win the lottery....
Any help is greatly appreciated.
Any help is greatly appreciated.
03-05-2018, 08:20 PM
#2
Race Director
Double check everything and if all is well get the car aligned. If under acceleration the car pulls toward one direction, the thrust angle is off. Not sure why it would change after the parts change. Did you change the toe rod setting.
Last edited by 383vett; 03-05-2018 at 08:21 PM.
03-05-2018, 10:04 PM
#3
Team Owner
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03-22-2018, 06:29 PM
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I checked everything, seems good. I do remember the toe end rotating (my knuckles figured it out) when I took the nut off. It's just basically a big pin yes?
I had discount-not-knowing put it on the alignment rack and they said it was ok. I have a pull to the right normally which is due to the steering not being centered when one of the last owners had a poor alignment. I'll take care of that when I put new tires on in a couple months.
I have narrowed it down to the right side that I didn't replace anything on yet. Would bad u-joints or hub allow that side to change vector enough to notice between deceleration and accelerating? I haven't found any play anywhere.
Thanks in advance.
I had discount-not-knowing put it on the alignment rack and they said it was ok. I have a pull to the right normally which is due to the steering not being centered when one of the last owners had a poor alignment. I'll take care of that when I put new tires on in a couple months.
I have narrowed it down to the right side that I didn't replace anything on yet. Would bad u-joints or hub allow that side to change vector enough to notice between deceleration and accelerating? I haven't found any play anywhere.
Thanks in advance.
03-23-2018, 12:44 PM
#5
Team Owner
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Not w/o making some pretty noticable noises that aren't pleasant. You could easily diagnose that by jacking it up and shaking the wheel. If the hub is loose enough to cause alignment change, you'd feel that. Same goes for U-joint.
Last edited by Tom400CFI; 03-23-2018 at 12:46 PM.
03-23-2018, 01:58 PM
#6
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I kind of figured that, I'll jack it up tonight and see if anything shakes loose.