Rear track and control arm bushing question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Tim240Z · 08-28-2009, 02:18 PM

Are the bushings (urethane) for the rear trailing arm and track (panhard) bar the same between the 3/4 ton and 1/2 trucks/suburban (67-72)?
I need to replace the bushings in my 72 burb, but am having problems tracking part numbers.
Thanks,
Tim

SCOTI · 08-28-2009, 03:04 PM

They should be the same. The difference in the arms themselves was the addition of plating on the top & bottom to reinforce them.

Tim240Z · 08-28-2009, 03:25 PM

Thanks!
I figured as much for the control arms, but wasn't 100% sure.

As for the track bar, I seem to remember years ago, when I replaced the track bar bushings on my 71 C20 truck, that I had problems with the size....may be false memory though....

Tim240Z · 08-28-2009, 04:28 PM

Well, I pulled the bar out and measured....the 3/4 ton track bar bushings are larger OD than the 1/2 ton ones. The 3/4 ton bushings are 1 3/8" OD, the 1/2 ton version is about 1 1/2".....so now I need to track down the correct part number....

08-28-2009, 02:18 PM	#1
Tim240Z Senior Member Join Date: Jan 2005 Location: LAX area, So Cal Posts: 499	Rear track and control arm bushing question Are the bushings (urethane) for the rear trailing arm and track (panhard) bar the same between the 3/4 ton and 1/2 trucks/suburban (67-72)? I need to replace the bushings in my 72 burb, but am having problems tracking part numbers. Thanks, Tim __________________ 1972 Suburban C20 454/TH700R4, eaton-corporate 4.10 (looking for 3.7) Sold: 71 Cheyenne 20 Installed a 99 5.7L L31/4L60E from Suburban 1500 (2005)

08-28-2009, 03:04 PM	#2
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,064	Re: Rear track and control arm bushing question They should be the same. The difference in the arms themselves was the addition of plating on the top & bottom to reinforce them. __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.*

08-28-2009, 03:25 PM	#3
Tim240Z Senior Member Join Date: Jan 2005 Location: LAX area, So Cal Posts: 499	Re: Rear track and control arm bushing question Thanks! I figured as much for the control arms, but wasn't 100% sure. As for the track bar, I seem to remember years ago, when I replaced the track bar bushings on my 71 C20 truck, that I had problems with the size....may be false memory though.... __________________ 1972 Suburban C20 454/TH700R4, eaton-corporate 4.10 (looking for 3.7) Sold: 71 Cheyenne 20 Installed a 99 5.7L L31/4L60E from Suburban 1500 (2005)

08-28-2009, 04:28 PM	#4
Tim240Z Senior Member Join Date: Jan 2005 Location: LAX area, So Cal Posts: 499	Re: Rear track and control arm bushing question Well, I pulled the bar out and measured....the 3/4 ton track bar bushings are larger OD than the 1/2 ton ones. The 3/4 ton bushings are 1 3/8" OD, the 1/2 ton version is about 1 1/2".....so now I need to track down the correct part number.... __________________ 1972 Suburban C20 454/TH700R4, eaton-corporate 4.10 (looking for 3.7) Sold: 71 Cheyenne 20 Installed a 99 5.7L L31/4L60E from Suburban 1500 (2005)

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