Bad Vibration @ 80-85 MPH

JJhirsch · Apr 6, 2012

Car going in next week to get all new ford racing bearings and clutch packs. Also the vibration does get worse as soon as I let go of the gas 50+mph. Probably the same problem.

JJhirsch · Apr 13, 2012

Just got it to the shop waiting for the word tomorrow!!!!

Ford racing Trac Lok Clutch packs and bearings FTW!

JJhirsch · Apr 14, 2012

WOOOOOOOO Picked it up and there is no vibration at all now waiting for tomorrow to get it up to 75+ to make sure.

Only signs of any issues was one pitted axle so the guy put in a repair bearing which sits a little farther out then the stock one but it was ment for this type of problem.

I am happy and atleast i got new Ford Racing carbon clutch packs put in time to take it to 1/4 mile!!!

Steve-Oh · Apr 14, 2012

Just throwing this out there... You didn't recently swap out your rubber trans mount for a polyurethane one?

JJhirsch · Apr 14, 2012

I have poly in my trans and motor mounts since i got the car 2 years ago and the only vibration you should feel is from the motor revving or when getting high rpm on the high way but it is very minor. Nothing like it was when my car was bad.

The best thing was to take it to a shop and have them diegnos it and go from there. some shops wont charge to look at it but dont always get the work done at the first shop you go to.

My first shop wanted 900+ in parts and labor with just cheap fluid to do bearings and seals in the rearend.

I found a guy who owned a nice shop who just did it for a total $710 labor and all parts with royal purple and put new carbon clutch packs in which the other shop was not including.

5litrarag · Apr 14, 2012

So vibrations are gone with the diff clutch pack replacement and a set of axle bearings? No side or spider gears were done?

Steve-Oh · Apr 16, 2012

Well, if it's worth the $15 to you, get a factory rubber trans mount and try it out then give it a whirl. Just a suggestion.

JJhirsch · Apr 16, 2012

All gears were good inside and i didn't have to get the clutch pack i just thought for $100 for the Ford racing carbon clutches the guy would do the extra work for $70 more i might as well.

Now this does not mean that is what is wrong with your car but it could be.

To make it clear what i got this is the kit i bought http://www.americanmuscle.com/frpp-88-pinion-kit-8604.html so it includes every thing you can replace in your rear end bearing/seal wise.

Clutch packs here http://www.americanmuscle.com/ford-88-traclok-kit.html