Engine/Transmission (1994 - 1998) 5th gear vibration cause(s) ???

[JMauro]

my truck has an annoying vibration in 5th gear (only) and i was wondering if this is a symptom of the gear coming loose. any quick surefire way to confirm if it's loose?

 

[JMauro]

any takers???

 

[DTroy]

I hate to say it, but it's a definite possibility that 5th is on the way out. Especially if the vib is only in fifth. The best way to check would be to pull

the tailhousing off. You would have to actually pull fifth gear off to check the

splines. Even if the nut is tight, the splines could be worn.

For a repair, I wouldn't do anything less than an updated mainshaft repair.