[Chris951]

I replaced my u-joints in april and still had a vibration after that. Well, I bought some pony rims with tires and it made it alot better because the old tires on my 10 holes were dry rotted and out of round. But now I still have a vibration at like 65mph. It's not steady but it wurrrrrs... idk how to explain it. My girlfriends dad said my u joints were bad while he was moving my driveshaft which i guess is not supposed to move at a stop lol. But also, when I'm cruising in 5th on the highway and I let off the gas abruptly, there's a loud bang noise and it jerks the car kinda. Should I just replace the u joints again?

[WDfrmTN]

Originally Posted by Chris951 I replaced my u-joints in april and still had a vibration after that. Well, I bought some pony rims with tires and it made it alot better because the old tires on my 10 holes were dry rotted and out of round. But now I still have a vibration at like 65mph. It's not steady but it wurrrrrs... idk how to explain it. My girlfriends dad said my u joints were bad while he was moving my driveshaft which i guess is not supposed to move at a stop lol. But also, when I'm cruising in 5th on the highway and I let off the gas abruptly, there's a loud bang noise and it jerks the car kinda. Should I just replace the u joints again?

Man!
Okay, u-joints. Pull your drive shaft and have it balanced.
Check your rear-end yoke, rear gear slack, and transmission output bearing (will cause your 'bang', also).
Aside from being with the car, that's what I can think of.

[nolife]

Originally Posted by Chris951 I replaced my u-joints in april and still had a vibration after that. Well, I bought some pony rims with tires and it made it alot better because the old tires on my 10 holes were dry rotted and out of round. But now I still have a vibration at like 65mph. It's not steady but it wurrrrrs... idk how to explain it. My girlfriends dad said my u joints were bad while he was moving my driveshaft which i guess is not supposed to move at a stop lol. But also, when I'm cruising in 5th on the highway and I let off the gas abruptly, there's a loud bang noise and it jerks the car kinda. Should I just replace the u joints again?

My 91 has made a bang and slight jerking on and off the gas in 5th since I drove it off the lot 18 years ago. I thought that was normal
I don't have vibrations though.

[Chris951]

Originally Posted by nolife My 91 has made a bang and slight jerking on and off the gas in 5th since I drove it off the lot 18 years ago. I thought that was normal I don't have vibrations though.

Yeah, mine's like a loud bang though. It's never done it this bad and its getting worse

[joseph296]

I have a vibration that sounds the same as yours just it doesent start tll around 80 or 90

[jessemachone]

if your vibe is at 65, it may be a wheel balance issue. will the vibe be gone above 75? i had this problem and it was the wheel balance. i am doing u joints today though because they are making grinding kind of vibe.

also, if your vibe is of a higer frequency it is the drive shaft. if it is a lower frequency, it is a wheel.

[93hatch]

could be alignment slightly off, 1-4 wheels off balanced, drive shaft, or just the fact the fact the cars old as fuck and falling apart

[Chris951]

Originally Posted by jessemachone if your vibe is at 65, it may be a wheel balance issue. will the vibe be gone above 75? i had this problem and it was the wheel balance. i am doing u joints today though because they are making grinding kind of vibe. also, if your vibe is of a higer frequency it is the drive shaft. if it is a lower frequency, it is a wheel.

I just balanced the wheels at my work so i know its not that. It stays the same and is present at and above 65. I think Im gonna just change the ujoints next week and see if that helps.

[Chris951]

Originally Posted by 93hatch could be alignment slightly off, 1-4 wheels off balanced, drive shaft, or just the fact the fact the cars old as fuck and falling apart

Just got an alignment last week and the wheels are balanced. I can feel it in the seat though like its the driveshaft so idk like i said im gonna change the ujoints and see if it helps.

And the driveshaft isnt supposed to move at all when you mov eit with your hand right?

[jessemachone]

Originally Posted by Chris951 Just got an alignment last week and the wheels are balanced. I can feel it in the seat though like its the driveshaft so idk like i said im gonna change the ujoints and see if it helps. And the driveshaft isnt supposed to move at all when you mov eit with your hand right?

the shaft should not have any play in relation to the drive saft yoke and the flange that goes to the pinion.

there will be play in the rear a little from gear backlash

[93hatch]

Originally Posted by Chris951 Just got an alignment last week and the wheels are balanced. I can feel it in the seat though like its the driveshaft so idk like i said im gonna change the ujoints and see if it helps. And the driveshaft isnt supposed to move at all when you mov eit with your hand right?

na itll have a lil bit of play, not much though. I think its like 20 bucks to have it balanced so might as well try it

[WDfrmTN]

Originally Posted by joseph296 I have a vibration that sounds the same as yours just it doesent start tll around 80 or 90

Did you have the wheels/tires speed-balanced?

[WDfrmTN]

Originally Posted by Chris951 And the driveshaft isnt supposed to move at all when you mov eit with your hand right?

Just BARELY. When you get the driveshaft balanced, have the yokes checked for true. I've seen folks spring the yokes changing u-joints.

[grnstang]

i had the worst vibration issues ever...i bet if you put in a new aluminum driveshaft they would be gone

[Chris951]

Originally Posted by 93hatch na itll have a lil bit of play, not much though. I think its like 20 bucks to have it balanced so might as well try it

Where at?

And it has some play. More than it should. I remember after i put it in it had less play than this

[93hatch]

just when you grab it and rotate it back and forth, itll have slight play there

[Chris951]

Originally Posted by 93hatch just when you grab it and rotate it back and forth, itll have slight play there

It does, but it seems more than slight.