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87 lost 4 wheel drive

Discussion in 'Chevy Trucks' started by snow tender, Dec 10, 2009.

  1. snow tender

    snow tender Senior Member
    Messages: 134

    Need a little help. Went to put the truck in 4 wheel drive yesterday but didn't happen. Its a 87 one ton dump with the locking exterior hubs.I can feel the transfer case locking in but no 4 wheel. I thought that the trucks with locking hubs don't have the actuators but could be wrong. I am at a loss. open for suggestions.
     
  2. B&B

    B&B PlowSite Fanatic
    Messages: 12,777

    One of the auto hubs isn't engaging. Common problem with them on a plow truck even way back when they weren't all that old. The auto engaging mechanism wears out prematurely from the continuous forward/backward motion and eventually just stop working all together. Auto hubs on a plow truck were always a poor idea. Many guys swapped them out immediately after the truck was destined for plow use.

    So a fresh set of good aftermarket manual locking hubs will fix it right up.
     
  3. snow tender

    snow tender Senior Member
    Messages: 134

    B & B to the rescue. Thanks.:salute: I will check out a set of hubs. They look like they should be a easy remove and replace. With any luck will get it up and running before the next snow fall.
     
  4. tuna

    tuna Senior Member
    Messages: 488

    One ton does not have Auto hubs.
     
  5. B&B

    B&B PlowSite Fanatic
    Messages: 12,777

    The heck they didn't. Have changed many over to manuals over the years.

    The auto's were an RPO option on all weight classes from '81 thru '87 and on the 1 tons, Subs and Blazers to '91.
     
  6. tuna

    tuna Senior Member
    Messages: 488

    I stand corrected.;)
     
  7. sweetk30

    sweetk30 PlowSite.com Addict
    Messages: 1,588

    x2 on that info.
     
  8. B&B

    B&B PlowSite Fanatic
    Messages: 12,777

    Here's what the 1 ton autos look like...

    !Bb82(R!B2k~$(KGrHqUH-EUEqvihLyBFBKyVD74hCw~~_12.jpg