Thanks will check those out! I just replaced the pinion seal a few weeks ago, had a very very slight leak. Didn’t see and play back there. I think I’m going to bite the bullet and have the driveshaft balanced and u joints replaced.
Another vibration thread!
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When did your vibration start? Before or after the pinion seal replacement?
How old are the tires flat spot from sitting maybe
What streetbu said did it start after the pinion seal replacement? If you didn’t tighten the pinion nut right that’ll give you all kinds of issues. Correct way to do it is remove the rear gear carrier measure pinion preload before disassembly then tighten but until you get desired pre load. Flat rate way is count the number of threads showing past nut mark the nut to the pinion then on reassembly tighten just a hair past your mark with same number of threads showing
Vibration occurred before the pinion seal. I was very careful with pinion preload.
Tires have less than 500 miles on them. The car did sit for 4 years or so but the vibration also started before that. I always thought it was suspension related so first thing I did when I took it back out was replace the entire front suspension and steering shaft. The only thing I did around the time it started was replace the body bushings. I just checked them and they are all torqued correctly. I’ll check the axles as suggested, tires to make sure they were balanced correctly, and then if that checks out driveshaft balance and u joints.
Also, there seemed to be a wear mark on the driveshaft that I never noticed. Not a gouge, but still concerning. And the exhaust is not touching it. Maybe it was the old temporary exhaust I welded up after trying to rebuild the 307 years ago.
Good to know about the driveshaft I wasn't sure. I replaced the u-joints the other day, but every time I try to take the car out it rains so I have not test drove it yet.
Got the heavier-duty joints, job wasn't too bad...was able to do it without a press...just used a few sockets, big hammer and torch to get the plastic retainers out. Didn't need a shop to press them in like I originally thought.
Well, I replaced the u-joints and took it out for a drive. Not the cause of the vibration, but it only cost me about $50, and I no longer have the weaker stock joints in.
I do think I found the culprit though. Torque converter shudder. By chance I saw an ad for those 2oz tubes of Shudder Fixx and added it. Took it for a drive and now it's smooth! No vibration. Changing the converter to match my 383's power band better was in my horizon, looks like I'll be doing it sooner! Thanks for all the input and help!
I do think I found the culprit though. Torque converter shudder. By chance I saw an ad for those 2oz tubes of Shudder Fixx and added it. Took it for a drive and now it's smooth! No vibration. Changing the converter to match my 383's power band better was in my horizon, looks like I'll be doing it sooner! Thanks for all the input and help!
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