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Front Axle Actuator Question

Discussion in 'Chevy Trucks' started by Stan, Sep 3, 2010.

  1. Stan

    Stan Senior Member
    Messages: 579

    Working on a 1994 3500. Basically have the truck torn apart going through the bs to make it right for the flight this winter. Have a couple of questions.
    -Noticed on my '95 3500 when I engage the 4wd its instant where as the others Chevy's take some time. Bought the 95 used so not sure what actuator is in it. Would anyone have a part number for an instant on for 1 ton trucks? I know the 1 ton actuators differ from a 1/2 ton.

    -To change the pinion seal if I index the nut and flange with a center punch will I have problems? Don't really feel like messing with a crush collar.

    -Noticed the axle seals are leaking. Had the differential standing up on end and noticed a nice puddle. I have the seals and researched it but opinions vary. From what I see the axles simple are held in with an internal clip. To remove the axles its either a slide hammer or a rap with a BFH. However there is a thrust washer on the passenger side and the axle needs to be engaged otherwise it slips out of place. Anyone shed some light on that? Ideally I would like to remove the extension collar for an easier install into the truck.
  2. wva

    wva Member
    Messages: 78

    hey you might want to checkout the 4x4 posi-lok axle engagement system at 4x4 pos-lok.com it does away with the problem
  3. Stan

    Stan Senior Member
    Messages: 579

    Saw that but seems a little pricey. Looking for a cheaper way out.
    Removed the axles and went fairly easy. I did engage the 4wd but didn't seem to matter as I looked in the tube and saw 2 thrust washers floating around. I guess I'll remove the tube to make installation back into the truck a tad easier. In theory the thrust washers should hold in place with a dab of grease upon assembly.
    Last edited: Sep 5, 2010
  4. Stan

    Stan Senior Member
    Messages: 579


    Found what I was looking for. Dorman part 600-600 wire harness $37.96 and actuator 600-101 $66.13 from amazon.com. About 1/2 the price of posi-lok and same results. IMO less labor involved.