88' 5.0 Thumping Driveline? Aod?

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Old88Vert

Member

Oct 31, 2017

8

1

13

Oct 31, 2017

#1

• Oct 31, 2017

• #1

I'm having a tough time figuring this out. It started out where I could barley notice it (a slight bump/thump) while driving 20-35mph coasting in traffic. A couple of weeks ago I was hauling A and all of a sudden there was traffic and I had lock em up. The next time I drove it and ever since (5-6wks) its been thumping (trans/rear). I replaced all the bearings in the differential (chipped tooth on the pinion) and the gears 3.73 with new axle bearings but the thump is still there? Looking for advise.

 

RaggedGT

Been here over a DECADE and still no CT

Mod Dude

Jul 20, 2014

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Taylorsville ky

Oct 31, 2017

#2

• Oct 31, 2017

• #2

Best suggestion I have,is put the car up on jack stands-all 4 wheels off the ground and inspect all the mounts,bushings,end links,u joints,etc. If you don't see anything worn/broken or damaged-start it up and put it in gear (with all 4 wheels off the ground,securely on stands/lift.) and watch the drive line for shimmying/thumping.
Also-Welcome to Stangnet

 

90sickfox

Wasn't a pretty sight...and I've got big hands

SN Certified Technician

Mar 2, 2015

6,945

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Oct 31, 2017

#3

• Oct 31, 2017

• #3

Have you replaced the u joints on the driveshaft ?

 

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Old88Vert

Member

Oct 31, 2017

8

1

13

Nov 1, 2017

#4

• Nov 1, 2017

• #4

the rear joint but not the front. I need to replace just to make sure. Thanks.

 

Reactions: 90sickfox

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Old88Vert

Member

Oct 31, 2017

8

1

13

Nov 1, 2017

#5

• Nov 1, 2017

• #5

Thanks for the welcome. I did all that you suggested this week with nothing more able and the thump was not appearent on the stands In gear. Feels like a bearing but the occurrence seems faster than a wheel rotation as well.

 

MFE92

10 Year Member

Aug 25, 2010

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Phoenix

Nov 1, 2017

#6

• Nov 1, 2017

• #6

Trans mount still intact?

 

General karthief

wonder how much it would cost to ship you a pair

20+ Year Stangneter

Aug 25, 2016

27,896

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polk county florida

Nov 1, 2017

#7

• Nov 1, 2017

• #7

I'm going with trans or motor mount or u joint

 

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Old88Vert

Member

Oct 31, 2017

8

1

13

Feb 19, 2018

#8

• Feb 19, 2018

• #8

Sorry for not reporting back. All mounts replaced prior to this entry. Still thumping, I purchased a 5spd. conversion and I believe the AOD is the issue. I will repost once I've swapped it out.

 

nelzfoxes

5 Year Member

Aug 20, 2013

472

325

94

Feb 19, 2018

#9

• Feb 19, 2018

• #9

Old88Vert said:

Sorry for not reporting back. All mounts replaced prior to this entry. Still thumping, I purchased a 5spd. conversion and I believe the AOD is the issue. I will repost once I've swapped it out.

Click to expand...

Now that’s how you fix a car! My 302 was burning a lot of oil so I put a 351 in it! Ahaha! You and I are kindred spirits my friend!

 

Reactions: All Stock93

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Old88Vert

Member

Oct 31, 2017

8

1

13

Feb 19, 2018

#10

• Feb 19, 2018

• #10

Yeah buddy, I don't just want the fix I want it exponentially better!! 351 is my kind of fix as well.