About 3 months ago I purchased a 1987 4WD Suburban (with Auto Locking Hubs) that is currently driven once or twice per week for small honey-dos. I finally turned on the 4WD (I know I know) and it has a strange behavior. When I stop and put it in 4H and start to move again (on pavement) the vehicle girates and the front tires feel like they're locking up and releasing once per rotation. It feels like the tires are alternating on the locking and releasing so it is like being in a funky massage chair. On a somewhat related note it is a little big of a bear to put into 4H and I have done the recommened disengage technique as defined in the owner's manual. Sorry for the bad description but this is the best way I can describe it. If you need further explanation than please let me know.
So two questions:
- Do the hubs need to be replaced or rebuilt (if they can be rebuilt)
- Where would I order the parts from item #1 or whatever parts are needed. It seems that Chevy is phasing out some of the parts for that vehicle.
Thank you in advance for your time.