Carrier Bearing

[TPMLE]

Suburban has a 130'' wheelbase - not short! I'm guessing the OP has a crew cab long bed...
My only concern is that my 2WD Suburban has a grease point I'm unaware of but from what I've gleaned from the forum over the years, my spline is lubricated by the ATF within the 4L-80E.

I was the original poster, it’s a C3500 crew cab long bed truck, 2-piece driveshaft

 

[highwaystar]

I've replaced them, used a hydraulic press I got from Harbor Freight.
Mine ('94 ext.cab) didn't have a grease zerk, just had a zerk where the 2 shafts come together.