I JUST REINSTALLED A DRIVESHAFT INTO A 85' BLAZER THAT IS BONE STOCK AND IT DOESN'T ROTATE FREELY IN 2WD. I KNOW IT SHOULD SO WHAT DO YA'LL THINK, IS IT THE CASE OR AUTO-LOCK SHITTY FRONT HUBS?

I am assuming you are talking about the front driveshaft??

Unbolt the front driveshaft u-joint and see if the shaft spins freely.... If it does, it might be the hubs.....

or, raise the front tires and spin the shaft... do the front wheels spin?

Check the tcase and make sure it is really in 2wd.....


Good Luck

One way to test the auto hubs is to drop the drive line and try turning the axel yoke to see if the auto hubs are locked