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thuding sound under seats in drive train


2 mazdas

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May 17, 2009
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Vehicle Year
1994
Make / Model
mazda
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Automatic
i bought a wrecked 94 mazda b-4000 4x4 and before i had the front frame horns straighted it did not have this thudding sound under seats looked all over underneath nothing rubbing anywhere that i can see do you have any suggestions do you think tranny mount or carrier bearing by chance let me know if anyone has any ideas thanks
 


JamesC

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Oct 16, 2007
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1986/2005
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Ford
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350 chev/3.0
I had that noise when my radius arms and bushings were worn.
 

AllanD

TRS Technical Staff
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East-Central Pennsylvania
Vehicle Year
1987... sorta
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Ford
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'93 4.0
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Manual
Under the seat?

check directly above the rear output of the T-case

With sagged body mounts in a supercab the rotating
t-case flange can just touch the rib under the floor and make
a witness mark only about the size of your pinkie nail

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