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Old 05-20-2008, 03:29 PM   #1 (permalink)
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Synchromesh GM Part Number

Asked over on TeamSwift as well, but thought maybe someone here would know.

I'm looking for the part number for the GM Synchromesh fluid.

I understand there to be two formulations... and old and a new. I'd obviously prefer the new formula.

The parts folks behind the counter at the GM dealership here are clueless. I want to make sure I'm getting the right oil for my ol' '98 metro.

Thanks!

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Old 05-20-2008, 03:46 PM   #2 (permalink)
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You can get it from Advance Auto, among other places I'm sure. It's not dealer-exclusive. Same deal with GM's Dexcool fluid.
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Old 05-20-2008, 03:56 PM   #3 (permalink)
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no advanced auto's around here. we have kragen and napa.... do they sell?
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Old 05-20-2008, 05:06 PM   #4 (permalink)
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think i found it:

GM part # 12345349
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Old 05-20-2008, 07:24 PM   #5 (permalink)
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Don't get it from GM if you can help it. It is THE most expensive place you could get something for your car.
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Old 05-20-2008, 07:27 PM   #6 (permalink)
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any online dealers? you're absolutely right... they want 20 bucks a quart. no wonder they're going broke!!
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Old 05-20-2008, 07:43 PM   #7 (permalink)
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Napa should have it for around $5/qt. This isn't a GM-only part because it doesn't go in a GM transmission. It goes in a Isuzu transmission, and possibly others.
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Old 05-20-2008, 08:05 PM   #8 (permalink)
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i called napa... they had no tranny fluid with the name synchromesh in it and hadn't a clue what i was talking about. sucks living in the sticks i guess (sticks compared to major metro area i should say).

anyway... is there any specifics i can tell napa to clue them in on what it is i'm looking for?
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Old 05-20-2008, 08:29 PM   #9 (permalink)
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Why not go for a nice synthetic amsoil blend?
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Old 05-20-2008, 11:20 PM   #10 (permalink)
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Arrow

The GM and Chrysler synchromesh gear oils are very light gear oils ... formulated specifically for synchronized manual transmissions (tuned to have the right coefficient of friction). They are about 9.0-9.5 cSt in weight @ 100 degrees. But these dealer-fluids are NOT the only game in town.

The cheapest replacement would be to get Pennzoil Syncromesh which is a replacement formula found in many of the big-box auto supply retailers:

http://www.pennzoil.com/products/gea...cro_fluid.html

Or Honda MTF:

http://www.manchestermotorsports.com/index.cfm?pid=210

Me? My next change on my '06 Honda Civic is gonna be Amsoil MTF, I think:

http://www.amsoil.com/storefront/mtf.aspx

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