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2500HD replaced tranny fluid

Discussion in 'Truck & Equipment Repair' started by ChevKid03, Jan 22, 2008.

  1. ChevKid03

    ChevKid03 Senior Member
    Messages: 505

    I finally got around to replacing my tranny fluid and filter last night... i had been dreading dropping the pan as some of the bolts by the transmission mount are pretty hard to get too... Anyway, took it apart, cleaned it out and was surprised at how good the fluid looked. The truck has 98K miles on it now, and I'm sure it was the first time it had been done. I bought the truck with 53K on it. The receiver didn't look like it EVER had a trailer on it when I bought it. That's actually the reason I DID buy it.. This is the first year the truck is being worked and I'll continue to keep up on the tranny service to see how much life I can get outta her...
     
  2. deere615

    deere615 2000 Club Member
    Messages: 2,919

    I changed mine before the winter. Mine now has 120,000 miles on it when I brought it there was 111,500. I don't think mine was ever changed either and the fluid was pretty clean. I had troule getting that little plastic spacer out where the filter goes in. Your right about some of the bolts being hard to get to.
     
  3. streetfrog

    streetfrog Senior Member
    Messages: 337

    Do yourself a favor. Change the fluid / filter every year if using for plowing. Also get a full fluid flush.
     
  4. ChevKid03

    ChevKid03 Senior Member
    Messages: 505

    Yeah, I've been reading up on how to do a full flush myself... I know it is DEFINITELY worth the $125 from the local tranny shop but why not do it myself for $50? If I get the time and patience to do it, I'll post some pics.
     
  5. streetfrog

    streetfrog Senior Member
    Messages: 337

    Just remember that you also have to flush the lines.
     
  6. Triple L

    Triple L PlowSite Fanatic
    from Canada
    Messages: 5,988

    I was reading on here somewhere that flushes are no good and that you should only change the filter and oil in the pan instead.... Can someone shead some advice on this?
     
  7. streetfrog

    streetfrog Senior Member
    Messages: 337

    You want to change all the fluid. Look at it this way. Would you just change your oil filter and top off the oil? Or would you change all the oil And the filter?
    Well the same applies to your transmission.
    If you just change the filter and replace the trans fluid lost by doing so you are only replacing about 4 quarts.
    Your transmission holds a minimum of 12 quarts of fluid. Just a filter change is equivalent to just changing your oil filter and topping it off.