Panhard Bar Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

VDOG · 10-25-2007, 08:16 PM

Does the rubber bushing of the panhard bar sit flush on the back of that bolt next to the axel tube or does it stop before at the thick part of the bolt?
Reason I ask, since I reinstalled my rearend I now have that driveshaft center support bearing making a squeaking noise. It needs to be change but my panhard bar does not sit back all the way. Wondering if thats the problem.

dave2953 · 10-25-2007, 11:37 PM

I believe it should sits flush. Did you center the rear before you installed the panhard bar?

VDOG · 10-26-2007, 01:14 PM

The rearend was center (somewhat) before it was removed. After I lowered the truck I went to a alignment shop and told him to center the rear. When I got the truck backit had measurments 30" on one side 35 on the other.
Was told that chevys tend to be not centered from the factory.
When it came back from the alignment shop it did not squeak, not until I reinstall the rearend so it might be my fault.

cdowns · 10-26-2007, 03:10 PM

well its best to center the rear measuring from the inside of the tire to the frame rail thats sort of the purpose of having an adjustable panhard// i use a ratchet strap from a trailing arm to the opposit frame rail// as far as the squeak lossen up the monnting bolts on the carrier bearing hanger and shake the driveshaft a bit then rotate the shaft and see if that helps and dont forget to retighten the mounting bolts when youre done// i alsao think on the panhard mount it might be a good idea to hahe large washers to prolong the life of the rubber bushing

VDOG · 10-26-2007, 04:01 PM

Quote:

Originally Posted by cdowns

as far as the squeak lossen up the monnting bolts on the carrier bearing hanger and shake the driveshaft a bit then rotate the shaft and see if that helps and dont forget to retighten the mounting bolts when youre done

Well the bearing does need to be change its ripped apart so I need to change it anyway,

dave2953 · 10-26-2007, 05:08 PM

You mentioned that you told your alignment guy to center the rear, but these truck don't have alignment adjustments for the rear. They only have them up front. They didn't charge you for a 4 wheel alignment, did they? I centered my rear the way cdowns mentioned: giant ratcheting tie down. It works great. Then just put the panhard bar in place and your set.

VDOG · 10-26-2007, 05:45 PM

Quote:

Originally Posted by dave2953

You mentioned that you told your alignment guy to center the rear, but these truck don't have alignment adjustments for the rear. They only have them up front. They didn't charge you for a 4 wheel alignment, did they? I centered my rear the way cdowns mentioned: giant ratcheting tie down. It works great. Then just put the panhard bar in place and your set.

Compared to the way it sat before I took it to the shop, I would have to say he did center it. Just not sure to what. With his measurments on the side of the truck, and I can tell there is a difference from the back of the wheel to the wheel tubs. Its not much but you can see the difference

VDOG · 10-27-2007, 08:03 PM

Will try to re-install my panhard bar tomorrow. Now I just got my driveshaft back today from the local auto parts and machine shop. They installed new u joints and driveshaft support bearing. I notice that the center yoke that blocks the support is not on the mark I made. The transmission mark and the rearend mark line up the yoke is off about 1 to 2 inches. Drove the truck and did not feel any vibration. Will this be a problem later?

10-25-2007, 08:16 PM	#1
VDOG Grand PooBaa Member Join Date: Jan 2001 Location: LA, CA Posts: 5,302	Panhard Bar Question Does the rubber bushing of the panhard bar sit flush on the back of that bolt next to the axel tube or does it stop before at the thick part of the bolt? Reason I ask, since I reinstalled my rearend I now have that driveshaft center support bearing making a squeaking noise. It needs to be change but my panhard bar does not sit back all the way. Wondering if thats the problem. Attached Images

10-25-2007, 11:37 PM	#2
dave2953 Dave's not here, man Join Date: Jun 2004 Location: Winder, Georgia Posts: 2,000	Re: Panhard Bar Question I believe it should sits flush. Did you center the rear before you installed the panhard bar? __________________ - 2014 VW Jetta - 2015 VW Jetta - 1966 Ford F-250

10-26-2007, 01:14 PM	#3
VDOG Grand PooBaa Member Join Date: Jan 2001 Location: LA, CA Posts: 5,302	Re: Panhard Bar Question The rearend was center (somewhat) before it was removed. After I lowered the truck I went to a alignment shop and told him to center the rear. When I got the truck backit had measurments 30" on one side 35 on the other. Was told that chevys tend to be not centered from the factory. When it came back from the alignment shop it did not squeak, not until I reinstall the rearend so it might be my fault.

10-26-2007, 03:10 PM	#4
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Panhard Bar Question well its best to center the rear measuring from the inside of the tire to the frame rail thats sort of the purpose of having an adjustable panhard// i use a ratchet strap from a trailing arm to the opposit frame rail// as far as the squeak lossen up the monnting bolts on the carrier bearing hanger and shake the driveshaft a bit then rotate the shaft and see if that helps and dont forget to retighten the mounting bolts when youre done// i alsao think on the panhard mount it might be a good idea to hahe large washers to prolong the life of the rubber bushing __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

10-26-2007, 05:08 PM	#6
dave2953 Dave's not here, man Join Date: Jun 2004 Location: Winder, Georgia Posts: 2,000	Re: Panhard Bar Question You mentioned that you told your alignment guy to center the rear, but these truck don't have alignment adjustments for the rear. They only have them up front. They didn't charge you for a 4 wheel alignment, did they? I centered my rear the way cdowns mentioned: giant ratcheting tie down. It works great. Then just put the panhard bar in place and your set. __________________ - 2014 VW Jetta - 2015 VW Jetta - 1966 Ford F-250

10-27-2007, 08:03 PM	#8
VDOG Grand PooBaa Member Join Date: Jan 2001 Location: LA, CA Posts: 5,302	Re: Panhard Bar Question Will try to re-install my panhard bar tomorrow. Now I just got my driveshaft back today from the local auto parts and machine shop. They installed new u joints and driveshaft support bearing. I notice that the center yoke that blocks the support is not on the mark I made. The transmission mark and the rearend mark line up the yoke is off about 1 to 2 inches. Drove the truck and did not feel any vibration. Will this be a problem later?



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