shudder at low speed front diff

[regismiling105]

Just replaced my front diff and now there is a slight shudder at about 5o kmph anyone got any ideas what could be making this happen

 

[richardlillard1]

Could you have been more vague?

 

[regismiling105]

slight fibration through the drive line feels like possibly front tail shaft but not sure could the replacement diff do this it was used not reconditioned

 

[BILT4ME]

Driveshaft phase
Bad u-joint
Loose bolts on differential
Bad bearings in differential
Dry spindle bushings
Loose wheel bearings
Blown head gasket

 

[regismiling105]

Driveshaft phase
Bad u-joint
Loose bolts on differential
Bad bearings in differential
Dry spindle bushings
Loose wheel bearings
Blown head gasket

thanks mate i think it might be drive shaft phase

 

[BILT4ME]

thanks mate i think it might be drive shaft phase

Front should be out of phase 90*. Rear should be in phase.

Slip joint yoke should be to the front of the truck in both shafts.

 

[regismiling105]

cheers mate i will check this tomorrow morning

 

[regismiling105]

thanks mate i think it might be drive shaft phase

when you say loose bolts on the diff which bolts are they , ive cheched they phase and its correct, wheel bearings are ok, uni joints were fine before i repleced the blown diff, i know the head if fine, so im down to the spindlil bushing being dry or bad bearings could it take a little while for diff oil to work its way into these parts of the second hand diff