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  1. #1
    Jr. Apprentice
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    Feb 2009
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    Where Uncle Sam sends me (currently Lawton, OK)
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    Default GM Synchromesh Alternative

    Is there a reliable one out there?
    Chris
    '03 Trailblazer
    '04 Colorado Z71
    Previous Chevys: '89 & '91 S-10 Pickups, '98 S-10 Blazer

  2. #2
    Jr. Apprentice
    Join Date
    Feb 2009
    Location
    Where Uncle Sam sends me (currently Lawton, OK)
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    Default

    Bueller...Bueller...anybody?
    Chris
    '03 Trailblazer
    '04 Colorado Z71
    Previous Chevys: '89 & '91 S-10 Pickups, '98 S-10 Blazer

  3. #3

    Default

    Quote Originally Posted by cmcoram View Post
    Is there a reliable one out there?
    I have never seen one. The syncromesh oil has several friction modifiers and if you use regular oil the trans becomes hard to shift. I guess you could experiment with posi additives and such but why chance it? The syncro's are paper backed and not conventional brass blockers and the wrong oil can cause early failure. JMO
    Jim

    2004 SILVERADO 2500HD LS
    Pro Comp Leveling Kit
    285-75-16 Cooper ST All Terrains
    Pro Comp Programmer
    Bilstein Shocks
    Linux Bed Liner
    Tinted Windows



    Other rides:

    1967 Landcruiser <350 Chevy>
    1970 Camaro
    1990 Geo Metro Convertible
    2007 FJ Cruiser

  4. #4
    Jr. Apprentice
    Join Date
    Feb 2009
    Location
    Where Uncle Sam sends me (currently Lawton, OK)
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    Default

    Ok, that's what I was looking for. Guess I will have to go to the dealer. The TC has a tag on it, I was told that this means the fluid needs an additive. Anyone know about this?
    Chris
    '03 Trailblazer
    '04 Colorado Z71
    Previous Chevys: '89 & '91 S-10 Pickups, '98 S-10 Blazer

  5. #5

    Default

    Quote Originally Posted by cmcoram View Post
    Ok, that's what I was looking for. Guess I will have to go to the dealer. The TC has a tag on it, I was told that this means the fluid needs an additive. Anyone know about this?
    TC? Do you mean transfer case? Which vehicle are referring to?
    Jim

    2004 SILVERADO 2500HD LS
    Pro Comp Leveling Kit
    285-75-16 Cooper ST All Terrains
    Pro Comp Programmer
    Bilstein Shocks
    Linux Bed Liner
    Tinted Windows



    Other rides:

    1967 Landcruiser <350 Chevy>
    1970 Camaro
    1990 Geo Metro Convertible
    2007 FJ Cruiser

  6. #6
    Jr. Apprentice
    Join Date
    Feb 2009
    Location
    Where Uncle Sam sends me (currently Lawton, OK)
    Posts
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    Default

    The transfer case on my Collie. The Haynes manual says that some transfer cases need an additive in adition to the recommended fluid, and that if the TC needs, there will be a tag on the TC. My TC has a tag on it.
    Chris
    '03 Trailblazer
    '04 Colorado Z71
    Previous Chevys: '89 & '91 S-10 Pickups, '98 S-10 Blazer

  7. #7

    Default

    Quote Originally Posted by cmcoram View Post
    The transfer case on my Collie. The Haynes manual says that some transfer cases need an additive in adition to the recommended fluid, and that if the TC needs, there will be a tag on the TC. My TC has a tag on it.

    What is the number stamped on the round tag on the back of the case? All cases have an ID tag riveted to the back of the case.
    As far as additives go I have never seen an additive for a transfer case. The rear differentials called for additives if they contained a clutch style positraction. If you have a clutch style AWD transfer case then the OE fluid is all you need. Post the ID number and we'll be able to tell you exactly which oil to use.
    Jim

    2004 SILVERADO 2500HD LS
    Pro Comp Leveling Kit
    285-75-16 Cooper ST All Terrains
    Pro Comp Programmer
    Bilstein Shocks
    Linux Bed Liner
    Tinted Windows



    Other rides:

    1967 Landcruiser <350 Chevy>
    1970 Camaro
    1990 Geo Metro Convertible
    2007 FJ Cruiser

  8. #8
    Jr. Apprentice
    Join Date
    Feb 2009
    Location
    Where Uncle Sam sends me (currently Lawton, OK)
    Posts
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    Default

    15124255. Its on a tag wrapped around the cable on the front of the TC. The cable runs from the right front of the TC to the left drive axle. It may just be the part number for that cable, but I want to be certain that I get the right fluid before I start draining and filling.
    Chris
    '03 Trailblazer
    '04 Colorado Z71
    Previous Chevys: '89 & '91 S-10 Pickups, '98 S-10 Blazer

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