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Discussion Starter #1
Was the 3-speed trans painted in a 66 coupe? (6 cyl.). Im rebuilding one for my car. I assume the bell housing is suppose to be painted blue? Thanks
 

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No paint on my 66 three speed. Bell housing is unpainted aluminum. Thinking of polishing it before reinstall next week.
 

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My 4 spd was just in bare metal in my 66 so probably not painted at the factory. A lot of rebuild shops will paint the cases after they finish.
 

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Discussion Starter #5
Ok Thanks for the information! No paint on bellhousing or transmission. I'll just clean them up with some aluminium wheel cleaning acid and maybe clear coat them.
 

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Complete degreasing of the bellhousing and a little gentle scrubbing of the bell with Barkeepers Friend will do. The wire wheel treatment will burnish the bell.
 
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No sense clear coating them as the clear coat will just yellow, crack and fall off due to the heat and look even worse.....Just polish best as possible and install. Tony K.
 
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What is wheel cleaning acid? Where do you find that and what finish does that give?
 

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If you are not going concours, I always paint mine with cast iron block paint or NAPA Cast Iron paint (which comes out really nice) so they don't rust. In fact I use it on virtually all my cast iron parts. Aluminum bellhousings gets cleaned well but no coating, if its in the engine compartment, Aluminum gets bead blasted. I even disassembled my alternator to bead blast the cases.
 

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What is wheel cleaning acid? Where do you find that and what finish does that give?
Places like WalMart, Advance Auto, AutoZone, etc., have wheel cleaning acid... it's a mild solution of hydrochloric (muriatic) acid and water.
 

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Discussion Starter #11
What is wheel cleaning acid? Where do you find that and what finish does that give?
Its a super strong cleaner containing hydrochloric acid for aluminum wheesl that is available to professional detailers only, usually in 55 gallon drums. I have a friend that owns a car wash and allows me to use it. You have to wear a mask because of the fumes but nothing cleans aluminum like it. It usually leaves the aluminum with a bleached look to it until you apply some type of polish or treatment. It depends on how long you leave it on before rinsing. Usually, less than a minute does the trick. You can buy a mid version of aluminum wheel cleaner at any auto parts store. Ive never had any luck with it though.
 
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