well i got my car on the road monday and i was on the highway today decided to see what she had and i had to let off around 70 75 mph idk becuase my gps takes a second to cach up lol "speedo doesnt work" anyway the car was shaking pretty badley i look in my mirrors and i can see the tires shaking is this normal or are they way way out of balance or what could i need a new drive shaft i do need new tires

 

If the tires were shaking, start by checking your lug nuts. Are they all tight?

Were they shaking straight up/down? Or any side to side wobbling?

 

to see them shaking is not good. most can notice a wobble or a vibration but never be able to see it. id say wat stephen said... check the lug nuts. i would not think ud have bowed or warped axles. could be wheel balancing but it wouldnt casue them to shake soo bad that u would be able to see it throught ur mirror

the driveshaft will not cause the wheels to vibrate.it will just cause a vibration that u will feel through the car.

 

I've seen some very very out of balance wheels out on the highway, so bad they come off the ground. No idea how those people drive with so much vibration but they do lol.

 

lugs are fine and yes i can see what looks to me like side to side its hard to tell with tiny mirrors lol im used to driving a truck

 

Sounds like a bent wheel or bent axle. Bent wheel is more likely.

 

man i hope its not a bent wheel lol i hope its not the axle either i just bought it used yes but from my mech who i no very well and he droped it out of a 4th gen he was going to keep it himself but i talked him into selling it so i wouldnt think its the axle i can tell u the side walls on these tires are cracked and the car was sitting for a while for about a year with these tires how do i tell what it is

 

It could be the tires formed a memory for sitting for so long...you could try another set and see if that works......also my car...along with many many others.....have had a vibration about 65-75...(do a search on it you'll find a lot)....what it is...the steel factory driveshaft in f-bodies are too small in diameter and at higher speeds..they worrble...causing a bad vibration....if you can find it..car craft did a driveshaft article about camaro's and showed pics of the driveline as it was spining..some bowed in the middle...some even bowed in the shape of an S.....the fix is to replace it with a aluminum drive shaft out of another camaro...usually a fourth gen....this fixed my car completely..of course after replacing everything else first..I would have never guessed drive line...but just a idea for you to maybe check out...

 

Do both sides shake? If not, swap them side to side & see if the shakes follows the wheel/tire.

And he was right...Could very well be the tire has formed a flat spot from sitting.

 

agree. swap the tires and see. but if they have cracks i would just replace them completely... hopefully this fixes the prob. and make sure when they balance them they check the rim to make sure its not bent.

ive seen flat spots in tires... but u would feel it at all speeds.... everytime the wheel rotated over that spot. the driveshaft i dont think would make the wheels move... come on guys lol. it would just cause a vibration. the rear end would have to shake as well which we all kno isnt happening.

the driveshaft could be out of balance but not making your tires move like that. idk if your mechanic messed with the pinon angle etc. im gona do with wheel probs or axle probs

 

I'd bet ya $100 it's the factory steel line....balancing won't help....replace it with aluminum and it'll fix it!!!

 

read this link...look at end when the guy had all these problems and then put an aluminum line in.....might help
https://www.thirdgen.org/forums/tran...iveshafts.html

 

i have read that and thats what was making me think the drive shaft but then i got wondering with being able to see the tire shake idk it might acutly be moving up and down as i stated its hard for me to tell but there is a slight up and down going down the road lol but its not bad until 55 60 and anything over 60 is down right scary

 

Well it could be tires like said above...but I know mine felt like the dang rear end was going to rip out of it......after the new aluminum line....I ran it out on the interstate and at 130 with no vibration...I figured that was fast enough....I was so used to it vibrating I didn't really notice I was really haulin' butt.....Even if that doesn't fix the problem....it's a thing you should do to your car anyways....IMO..

 

well me haveing a 4th gen rear and a th350 what will fit? i do plan on getting one sooner or later

 

The fourth gen rear should be same....but I dunno about the th350....you might have to do some research on that.....maybe get a custom line made....I think th350 are shorter, so you'll need a longer line.....I don't know for sure though.....

 

the TH350 is shorter than the 700r4... u will need a custom one built.

steel is stronger than aluminum. and the weight diff is negleable. i would get a nice 3.5" moly or DOM steel one... u should never be able to break that ever and they are balanced way better than the stockers... just like aluminum and carbon fiber

 

well the problem with the steel one...at least factory ones...that even if balanced...they bow or worbble at speed....so make sure a custom steel is a larger diameter or thicker or something.....

 

hey quick guestion is the driveshaft the same size from a 3rd to 4th gen? i gotta 700r4 not a th350. say i went to a junkyard and took a magnet to the driveshaft of a 4th gen, and it was aluminum, would it be plug and play? and is the driveshaft 100% aluminum? or is there any type of metal in there. if its got some metal in there then itll pull the magnet.

 

the driveshafts all fit 82-02 auto and manual transmission..so yes 4th gen to a 3rd gen will fit...they even made some third gens with a factory aluminum line......you'll be able to tell if it's aluminum...it's a lot bigger around than the steal one...but a magnet might work.....

 

and it will 'plug and play' as you put it....

 

3rd and 4th gens are the same... driveshaft is the same... only diff with the rear drivetrain is the axle tubes on the rear are 2" longer than the 3rd gen so the rear end is 4" wider than ours.

yea def get a larger DIA shaft... i stated like a 3.5" or so.... some go 4" but the 3.5" is fine. thats what most of the aftermarket driveshafts are... the stock iron is 2.5"

 

well i got new tires and well i had it up to about 100 only had vibration wich was horrible i suspect this to be the drive shaft im used to driving a v6 dakota was funny to stomp on it around 55 60 and look at my speedo a couple sec later and notice im doin 100 or more gps is a little slow catching up lol my speed on the car isnt hooked up