2001 GMC 3500 Savana Dually Center Support

ktmlew · October 16, 2015

These have a rear shaft with at least a 4" splined section. Not the usual slip yoke. The yoke at the rear end of the front shaft, which has the center support, doesn't have a bolt or nut retaining it. I assume this yoke is pressed on? Taking driveshaft to shop to get bearing changed Monday. Just curious if it normally presses off w/o any issues?

ktmlew · October 17, 2015

This the style of shaft.

Matt Saunoras · October 17, 2015

F-150 2 piece shafts are similar to this and the carrier bearing is non-serviceable through Ford. Our driveshaft shop cuts the yoke off, presses on a new bearing and welds the yoke back on. Perhaps this is the way this shaft is made too.

ktmlew · October 17, 2015

That is my assumption. Found the diagram after I posted. In the service description it says as much. Lists serviceable parts. Center support not one of them. New design isn't always good for the customer. But I guess it lasted 15 years and a couple hundred miles?

ktmlew · October 17, 2015

Thousand miles.

amailloux · October 18, 2015

Did you price a shaft through gm. I can usually get a shaft with all u joints and yokes cheaper than just replacing 3 u joints, carrier bearing, and a slip yoke. I have tried local driveshaft shops for balancing with very poor results. I even visited the shop in town to see how they balance and they have an expensive electronic machine but don't high speed balance. On a side not I ordered a custom shaft from Denny's driveshafts for a hot rod and I could run 80 mph with no vibration. They high speed balance.