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03-31-2005, 11:02 PM
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#1 |
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Saving 1 truck at a time!
Join Date: Aug 2001
Location: Kent, WA
Posts: 6,465
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Water in TH350
Someone gave a TH350 that was supposed to be good. I put it into my '67 stepside and started the engine but did not drive it. I went to service the tranny and found lots of water in the tranny fluid. I think maybe the tranny and sat in the rain and filled with some water. I removed the pan and am draining it. I think I will just fill it with good fluid, change the filter and have another go at it. Check it before I drive it and see if it is clear...maybe change it a couple more times until clear. Any other thoughts?
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'68 C20 Longhorn 50th Anniversary 400/TH400 '68 C20 Longhorn 50th Anniversary 468/TH400w/buckets '72 C20 Halfhorn (Longhorn w/o cab and front clip) '69 Flxible Cruiser (look up ugly in the dictionary) |
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03-31-2005, 11:21 PM
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#2 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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cross your fingers.
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04-01-2005, 12:33 AM
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#3 |
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Active Member
 
Join Date: Mar 2005
Location: North Highlands. California
Posts: 449
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No tranny fluid in the radiator? You prolly checked that already.
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67 short step  71 Custom
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04-01-2005, 12:48 AM
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#4 |
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Saving 1 truck at a time!
Join Date: Aug 2001
Location: Kent, WA
Posts: 6,465
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Andy...thanks! I have two other trannys so it is only a matter of time and the PIA factor to change it out for a working unit...but I hate going backwards.
Mario...air/oil tranny cooler but this tranny might have been on a rad before and that may be where the water came from. I don't know how much damage water can do to the clutch discs is my main concern.
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'68 C20 Longhorn 50th Anniversary 400/TH400 '68 C20 Longhorn 50th Anniversary 468/TH400w/buckets '72 C20 Halfhorn (Longhorn w/o cab and front clip) '69 Flxible Cruiser (look up ugly in the dictionary) |
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04-01-2005, 12:50 AM
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#5 |
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"Ochre Ogre"
Join Date: Apr 2000
Location: Springfield, MN
Posts: 3,558
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The best way might be a power flush. The poor mans way is to buy several cases of tranny fluid, remove the top cooling line at the radiator and run a hose to a large bucket. Pour the tranny fluid in while the engine is running. You will pump out the bad water/transfluid mixture. Then change the filter and you should be good to go. I had to do this last year because the radiator had a hole in the trans cooler. The water went into the trans and turned everything foamy Pepto-abismal pink.
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Bowtie Truck Stop Inc. Mid-West GM Truck Restoration Parts Supplier Your Key Parts, Auto Metal Direct, Dynacorn, and Goodmark dealer. like us @ www.facebook.com/BowtieTruckStop 1971 C-10 Suburban (Ochre) 1971 K-10 Suburban (Ochre) 1972 C-10 Suburban (Ochre) 1972 K-20 Suburban (Yellow- that just aint right!) Springfield, Minnesota 56087 |
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04-01-2005, 12:53 AM
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#6 |
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Senior Member
Join Date: Sep 2001
Location: Seattle, WA, USA
Posts: 5,817
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As long as you don't have rust in there you should be ok...but if it sat for a while you're in for a big rebuild.
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'69 3/4 ton C20 2wd-350ci/TH400 '69 3/4 ton Custom 20 2wd-350ci/4sp Manual '99 2wd 5.7 Chevy Tahoe Seattle, WA. |
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