[RESOLVED] thumping noise from the bottom of the car

[mndsm1]

well me and my friend were out trying to figure out why i was getting boost cut at around 5k today..last pull of the day he was listening from the outside to see what the deal was..and found nothing. i turned the corner and all of a sudden im hearing a thumping noise from the bottom of the car...it gets worse as i make turns or when i slow down. im guessing that its coming from either the t-case or something to do with the driveshaft...any insight?

 

[Defiant]

Driveshaft carrier bearing. Check the VFAQ.

 

[Carmenpzito]

Driveshaft carrier bearing. Check the VFAQ.

yeah x2

 

[1992awdlaser]

Ifyou can feel a banging on the floor it is the carrier bearing of the driveshaft. Does it do it when you launch the car or shift hard into second?

 

[BrokenTsi]

or the exhaust is banging on the rear end......

 

[mndsm1]

Were gonna put the car up on jack's today and run it through the gears and see what it is. I have a feeling that it could maybe be the driveshaft bearing which we wanted to replace that from the beginning but never did, and yea it gets bad when i go from first to second, or even just starting up from first. Feels like im running on a flat tire..but underneath the car.

 

[cruisintalonawd]

I'm having the same thing going I put my car on a lift and could see anything wrong. Where are some cheap places for those bearings. And are the hard to replace

 

[silver bullit]

Do you have different sized tires on the front or rear? Check the carrier bushings.

 

[1992awdlaser]

No reason to run it through the gears to check the carrier bearings. Just grab the driveshaft near the bearing and try to push the driveshaft up towards the floor pan.

 

[1992awdlaser]

Drive Shaft Rebuild

Slowboy Racing :: DSM :: OEM Parts :: Bearings :: Mitsu OEM 1G Carrier Bearing (MB505495)

 

[silver bullit]

Do you have different sized tires on the front or rear? Check the carrier bushings.

This is important aswell as this will casue the t case, trans or rear end to take a shit.

 

[mndsm1]

as far as my car goes theyre the same size in the front and rear...is it necessary for me to do the whole rebuild?

 

[silver bullit]

as far as my car goes theyre the same size in the front and rear...is it necessary for me to do the whole rebuild?

Same width, sidewall wheel size?

If its the carrier bushing then yes, you dont want your drive shaft to fall out going down the interstate or around a corner.

 

[mndsm1]

Same width, sidewall wheel size?

If its the carrier bushing then yes, you dont want your drive shaft to fall out going down the interstate or around a corner.

yes all the tires and wheels are the same as the rest. it seems like that rebuild is a pain in the ...

 

[cruisintalonawd]

Why do you keep posting the same thing? I just gave you the links needed.

Sorry my phone was feesking out. I deleated all but one I think

 

[mndsm1]

Figured out what the problem was. I shouldve checked the underside of the car before I posted anything, but we did today and realized that the bracket that is used to hold the rear part of the driveshaft up. The outer washer totally fell off and the bracket went over the nut causing it to rub on the exhaust. We put the car up on all 4 and ran it through a few gears and realized that the exhaust was hitting the rear diff.

 

[Twistaye]

Haha, +1 to BrokenTSi for nailing it on the head, glad you got it fixed.

 

[mndsm1]

Haha, +1 to BrokenTSi for nailing it on the head, glad you got it fixed.

Yea, Im not exactly sure why I never checked that. Figure I was just to aggrivated to even check. But thanks for everyones help.