Modded Mustang Forums banner
Cancel
Create thread New Garage Forums

Shaking the car.

Jump to Latest
1 - 17 of 17 Posts

1996 GT

· Still slow.
Joined
·
8,746 Posts
Discussion starter · #1 ·
Got my car back from the exhaust shop a few days ago. Ever since if i go 60mph or faster and let off the gas my car vibrates like crazy from the rear of the car. I can be in neutral, clutch in or out, car turned off and coasting and i still get it. It gets worse the faster i coast as well. The second i give the car a touch of gas it disappears completely. Now i do have 3.73's in the car and have had them in there since before i even bought the car but never had this issue before. I'm thinking its my pinion angle, any other ideas? :dunno
 
#2 ·
Maybe trans mount?
 
Save
Reply Quote Like Like
#5 ·
Has this been going on before you took it to the Muffler shop? I had a Flowmaster that would rub the crap out of my frame rail. It made a hellacious noise and vibration
 
Save
Reply Quote Like Like
#6 ·
check driveshaft, make sure the trans yoke is ok and u joints are good and greased
 
Save
Reply Quote Like Like
#7 ·
see mine does the same exact thing! but seems like more vibration from the front but when i had trans rebuilt i have a bd u joint i need to replace...
 
Save
Reply Quote Like Like
#8 ·
1996 GT said:
Got my car back from the exhaust shop a few days ago. Ever since if i go 60mph or faster and let off the gas my car vibrates like crazy from the rear of the car...
Click to expand...
Your answer is right there. If the symptom suddenly appears right after making a change (installing a different exhaust setup), it's probably that change that is causing the symptom. Look over the whole system for anything that could make contact with the body when decelerating. From your description, I'd bet it's on the passenger side rear pipe.

war1ock said:
Has this been going on before you took it to the Muffler shop? I had a Flowmaster that would rub the crap out of my frame rail. It made a hellacious noise and vibration
Click to expand...
Exactly.
 
Discussion starter · #12 ·
xandraxal said:
U-joint?
Click to expand...
I should check that out.

Tang Stang said:
Your answer is right there. If the symptom suddenly appears right after making a change (installing a different exhaust setup), it's probably that change that is causing the symptom. Look over the whole system for anything that could make contact with the body when decelerating. From your description, I'd bet it's on the passenger side rear pipe.



Exactly.
Click to expand...
Yeah, im going to look at it friday, im super busy this week. I'd be happy if it was only a u-joint

97S281 said:
I would look at the exhaust first but the symptoms you describe also happen when you have a bad u joint
Click to expand...
Yeah it would make sense, i have a feeling my u-joint was dropped or something along those lines when the dropped my drive shaft.


Thanks guys. :yes
 
#13 ·
When i had that. i had a very very loose pinion nut. In your case check the exhaust.
 
Save
Reply Quote Like Like
#14 ·
Check your lug nuts in the rear !! They will cause that to !!
 
Save
Reply Quote Like Like
Discussion starter · #15 ·
Just updating everyone, turns out all four of my driveshaft bolts were so loose i could unscrew them with my fingers. So a generous amount of locktight and an impact gun and we're all done. Fixed the vibration.
 
#16 ·
Good to hear it was an easy fix
 
Save
Reply Quote Like Like
1 - 17 of 17 Posts
About this Discussion
16 Replies
12 Participants
Last post:
xandraxal
Modded Mustang Forums
posts
6.3M
members
83K
Since
2005
A forum community dedicated to all Ford Mustang owners and enthusiasts. Come join the discussion about performance, racing, builds, modifications, troubleshooting, maintenance, and more!
Full Forum Listing
Explore Our Forums
96 - 04 Modular Mustangs 5.0 Mustangs New Members Introductions Classic Mustangs