1970 GMC Longbed driveshaft - The 1947 - Present Chevrolet & GMC Truck Message Board Network

asesapie · Yesterday, 12:55 PM

I can’t sort out how to take the front half of my driveshaft out. The front half of the drive shaft with the carrier bearing has no room to move essentially trapping the driveshaft in place. Anyone have any insight on how this thing can be removed? Carrier bearing is too larger to fit through the cross member. I didn’t build this part of my truck it came to me this way from PO.

**HO455** · Yesterday, 01:01 PM

Someone correct me if I'm wrong but I don't believe that is a factory carrier bearing. All the ones I've seen are mounted on the other side of the crossmember. You may have to unbolt the crossmember and push it back enough to get the driveshaft out.

asesapie · Yesterday, 01:02 PM

Yeah sorry the photos had a glitch when uploading and making the thread. Uploaded photos now.

bnorth · Yesterday, 01:51 PM

with the carrier bearing unbolted you should be able to force the driveshaft back far enough to get the U-joint to clear the yoke on the transmission. You need to remove the U-joint caps for extra clearance.

**Cali72K20** · Yesterday, 03:24 PM

Quote:

Originally Posted by HO455

Someone correct me if I'm wrong but I don't believe that is a factory carrier bearing. All the ones I've seen are mounted on the other side of the crossmember. You may have to unbolt the crossmember and push it back enough to get the driveshaft out.

This is from a 1971 service manual Chevrolet Service News Vol. 43, Number 2, Feb 1971.

**Cali72K20** · Yesterday, 03:31 PM

Is your truck a C20/30?

Yesterday, 12:55 PM	#1
asesapie Registered User Join Date: Sep 2005 Location: spokane, WA Posts: 15	1970 GMC Longbed driveshaft I can’t sort out how to take the front half of my driveshaft out. The front half of the drive shaft with the carrier bearing has no room to move essentially trapping the driveshaft in place. Anyone have any insight on how this thing can be removed? Carrier bearing is too larger to fit through the cross member. I didn’t build this part of my truck it came to me this way from PO. Attached Images Last edited by asesapie; Yesterday at 01:01 PM.

Yesterday, 01:01 PM	#2
HO455 Post Whore Join Date: Feb 2016 Location: Portland Oregon Posts: 11,276	Re: 1970 GMC Longbed driveshaft Someone correct me if I'm wrong but I don't believe that is a factory carrier bearing. All the ones I've seen are mounted on the other side of the crossmember. You may have to unbolt the crossmember and push it back enough to get the driveshaft out. __________________ Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 Last edited by HO455; Yesterday at 01:07 PM.

Yesterday, 01:02 PM	#3
asesapie Registered User Join Date: Sep 2005 Location: spokane, WA Posts: 15	Re: 1970 GMC Longbed driveshaft Yeah sorry the photos had a glitch when uploading and making the thread. Uploaded photos now.

Yesterday, 01:51 PM	#4
bnorth Registered User Join Date: Aug 2020 Location: Salmon Arm BC Posts: 199	Re: 1970 GMC Longbed driveshaft with the carrier bearing unbolted you should be able to force the driveshaft back far enough to get the U-joint to clear the yoke on the transmission. You need to remove the U-joint caps for extra clearance. __________________ 1970 C10 l/b 292/4spd Build: http://67-72chevytrucks.com/vboard/s...d.php?t=811062

Yesterday, 03:31 PM	#6
Cali72K20 Senior Member Join Date: Aug 2013 Location: Northern Santa Barbara County, California Posts: 2,702	Re: 1970 GMC Longbed driveshaft Is your truck a C20/30?



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