Offroad Trailblazers and Envoys

CV popping in and out

G80, GU6, GT4, GT5, WTF? This section is for gearing and driveline stuff.

by Chango » Thu Jun 04, 2015 8:30 pm

Image

Last year when I rebuilt my disconnect, I replaced the shaft(rebuilt one from Detroit axle) as well because the old one was doing this too. This one has done it since day one.

Any thoughts as to what is causing this? How to fix? It doesn't drive any different, that u can tell.
User avatar
Chango
Off-Roader
 
Posts: 184
Joined: Thu Oct 24, 2013 12:56 pm
Location: S.E. Michigan
Name: Chris
Vehicle Year: 2007
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD w/ Limited Slip

by v7guy » Thu Jun 04, 2015 11:08 pm

Looks like all the movement is in the tripot, which is normal, is the nut in on the CV torqued down at the spindle? The CV joint at the spindle doesn't have any plunge... So when assembled it shouldn't do that.
build thread

All things in moderation, including moderation.
Some people never go crazy... what truly horrible lives they must lead
User avatar
v7guy
Moderator
 
Posts: 3712
Joined: Wed Mar 09, 2011 10:17 pm
Location: NY, long island
Name: Jason
Vehicle Year: 2004
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD
Rank: Offroad Rated

by Chango » Fri Jun 05, 2015 9:49 am

If was torqued to spec when I put it all together. I'm still waiting on my wheels, so it's been on stands for a week or so. I should have some time this weekend to double check its torqued correctly.

So you're saying, movement at the tripot is normal, but not by the hub.?
User avatar
Chango
Off-Roader
 
Posts: 184
Joined: Thu Oct 24, 2013 12:56 pm
Location: S.E. Michigan
Name: Chris
Vehicle Year: 2007
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD w/ Limited Slip

by v7guy » Fri Jun 05, 2015 10:01 am

If it's bolted together it shouldn't do that at all, might get a 1/4" play trying to move it like you are in that video.
If it's not bolted together that's completely normal.

And yes, the tripot can plunge, the joint at the hub (the actual CV) can't really.
build thread

All things in moderation, including moderation.
Some people never go crazy... what truly horrible lives they must lead
User avatar
v7guy
Moderator
 
Posts: 3712
Joined: Wed Mar 09, 2011 10:17 pm
Location: NY, long island
Name: Jason
Vehicle Year: 2004
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD
Rank: Offroad Rated

by Trail X » Mon Jun 08, 2015 11:54 am

The CV "nucleus ball" (for lack of a better term) might have some amount of play on its splines to the shaft. But that seems excessive. Although, I can't see it really hurting anything as long as the CV nucleus stays centered on the CV housing.
8-) Build Thread | ExPo Build | YouTube Videos
Not all who wander are lost. -Tolkien
User avatar
Trail X
Founder
 
Posts: 9935
Joined: Mon Sep 07, 2009 10:22 pm
Location: VA, Roanoke
Name: James Downing
Vehicle Year: 2005
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD w/ Aftermarket Locker
Rank: Expedition Guide


Return to Differentials / Axles