Need some help with my truck

[Chrisblazzer89]

OK I was wondering where my voltmeter needle should be? Mine is past 13 but not in the red is that OK? Second when I'm on the highway my truck vibrates for like 2 seconds and then stops the vibrates for 2 seconds then stops and so on and so on but everything seems to be fine what could be the problem? Third where can I find K5Blazer emblems like this one

 

[NewUser]

the vibration could be a U-joint or imbalanced driveshaft....as for the emblem im not sure...maybe somewhere like LMC?

 

[Chevy305]

Maybe wheel bearings?

 

[4X4HIGH]

Volt meter reading just past 13 volts is good.
Vibration seems to be driveshaft related.
K5 emblem, try LMC or classicparts

 

[dyeager535]

Gm still sells that emblem, gmpartsdirect.com has them for the same price as LMC, no idea if LMC is cheap knock offs or re-bagged GM pieces, but I'd go GM.

Get a voltmeter on your alternator and see if your gauge is even correct.

 

[Chevy305]

HIGHJACK* - sorta...

I just wired up an AutoMeter volt gauge that reads about 14.5 to 15 volts, that should be the norm right?

 

[4X4HIGH]

anywhere from 13.5-15.5 is normal.

 

[Chrisblazzer89]

Thanks for all the help guys. When it gets warm out I will replace my conversion U-joint and replace all my bearings.

 

[diesel4me]

Another thing..

The slip yoke splines can get sloppy,and cause a vibration also,even if the u-joints and shaft are perfect...so can the pinion angle,if its not within specs..