Need front driveshaft bolts

[Mark Dumka]

Hello, I have a 1980 GMC K15 and I need to replace the 4 bolts that fasten
the dual cardan U-joint assembly at the rear end of the front driveshaft to
the transfer case. Anyone know where to find them? I found 3 GM part numbers
for them (one supersedes the other) but the GM parts store told me they are
all discontinued. They are 01240073, 01245509, and 12338117. Also, do I
need to use locktite or something else when installing them? What torque
should be applied?

Thanks,
Mark

[newdude]

10 hours ago, Mark Dumka said:

Hello, I have a 1980 GMC K15 and I need to replace the 4 bolts that fasten
the dual cardan U-joint assembly at the rear end of the front driveshaft to
the transfer case. Anyone know where to find them? I found 3 GM part numbers
for them (one supersedes the other) but the GM parts store told me they are
all discontinued. They are 01240073, 01245509, and 12338117. Also, do I
need to use locktite or something else when installing them? What torque
should be applied?

Thanks,
Mark

 

 

1240073 and 1245509 are both replaced by 12338117.  I see a bunch of US dealers showing stock on hand.  I can't see Canada however but that doesn't mean a dealer up there doesn't have some floating around.  Also, a quick Google search of 12338117 shows a good number of GM dealers that have online storefronts that show stock on hand.  If you want to try a dealer direct, can get you a list of US dealers if you need.

 

As for torque specs, I can check some old books in the AM and see what I can find.