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**HO455** · 08-12-2019, 05:49 PM

It looks like you have a 3/4 ton or leaf spring drive shaft. Is your truck either one? (GMC's. Were usually leafs.). The half ton shafts don't have the splined section. The first photo shows the 1/2 ton coil spring drive shaft. The part numbers for these over the years have changed many times and there are errors out there and where there used to be several numbers one for each option now there is one that "should" fit.
Does your mount look like the one in the link refered to as an HD shaft?
I converted my 1/2 ton coil spring Burban to the splined rear shaft with an aftermarket billet carrier bearing. You may be able to use the aftermarket carrier with your current drive shaft.
Good luck.

http://67-72chevytrucks.com/vboard/s...d.php?t=630898

08-12-2019, 05:49 PM	#2
HO455 Post Whore Join Date: Feb 2016 Location: Portland Oregon Posts: 10,867	Re: Driveshaft Confusion. It looks like you have a 3/4 ton or leaf spring drive shaft. Is your truck either one? (GMC's. Were usually leafs.). The half ton shafts don't have the splined section. The first photo shows the 1/2 ton coil spring drive shaft. The part numbers for these over the years have changed many times and there are errors out there and where there used to be several numbers one for each option now there is one that "should" fit. Does your mount look like the one in the link refered to as an HD shaft? I converted my 1/2 ton coil spring Burban to the splined rear shaft with an aftermarket billet carrier bearing. You may be able to use the aftermarket carrier with your current drive shaft. Good luck. http://67-72chevytrucks.com/vboard/s...d.php?t=630898 Attached Images __________________ 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