1978 K5 Blazer

[RC Miller]

Good afternoon i recently purchased a 78 K5 Blazer from the original owner it's in great shape, it has a small block Chevy 350 & Turbo 350 transmission. It has a vibration and i was wondering if that is because of the full time 4WD
I am not a gear head this is my first restoring anything so I am learning as i go, any advise is greatly appreciated.

 

[diesel4me]

Could be one or several of many things..if it sat for long,tires can flat spot and create vibrations..drive line vibrations usually come from worn u-joints ,unbalanced or dented,bent drive shafts,slop in the slip yokes on the drive shafts,and the transfer case or transmission can cause it ...

Yours being full time ,has the front drive shaft and differential rotating all the time,so there is twice as many moving parts compared to a part time 4wd ,where you can shift to 2WD and unlock the hubs, and all the front end parts stop turning--any worn ones will allow some slop and cause noises..loose and or worn wheel bearings are another possibility..