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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Sep 2009 Posts: 19 Apprentice | | Apprentice Joined: Sep 2009 Posts: 19 | I have the 3 speed OD tranny out of my 57 Chevy stepside and want to clean the sludge out of the inside before reinstalling. I really don't want to completely disassemble unless I absolutely have to. I will be replacing the seals. Can anyone recommend a way to flush without ruining the insides? Thanks in advance.
Mike | | | | | Joined: Feb 2004 Posts: 29,746 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,746 | Those transmissions are usually as tough as a two dollar steak. Just pour a couple of quarts of kerosene or Diesel fuel in, and spin the gears. If it's out of the vehicle, find a drill motor big enough to clamp onto the pilot bearing area of the input shaft, and spin away! You're not going to harm it at all by circulating a solvent in it, and whatever doesn't drain out will evaporate pretty quickly. In the vehicle, I just drain the old lube, fill with solvent, and run the engine with the tranny in neutral for a few minutes.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Sep 2009 Posts: 19 Apprentice | | Apprentice Joined: Sep 2009 Posts: 19 | Thanks Jerry, I'll give the kerosene a try. I just didn't want to ruin anything in the process.
Mike
| | | | | Joined: Oct 2009 Posts: 419 Shop Shark | | Shop Shark Joined: Oct 2009 Posts: 419 | Those transmissions are usually as tough as a two dollar steak. That must be PRETTY DARN tough. I haven't had the opportunity to sink my teeth into either. But I do appreciate learning this information. Thanks.
Last edited by Davey Do; 09/26/2010 10:34 AM.
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