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Old 01-17-2006, 05:11 PM
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c6 OD.

help help.
in the not too distant past, one of the mags had an article on adapting a ford truck std shift overdrive unit to a c6 auto (possibly HRM.) if anyone remembers the article please give me a heads up. alternately, do you know the particular trans this unit was available with??? i believe the unit, once completed, was cable operated, although i dont know if it was that way before being removed from the std tranny.
tks
DAN

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Old 01-21-2006, 07:29 AM
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OD to C-6

I dont remember the article but I have done the conversion. Late model C-6's come in 2 bellhousing styles, low top, that would fit 6cyl, 302 and 351 Windsor engines, and high top, that fits 351 Cleveland, 429 and 460 engines. An early C-6 was called round top and fit 352, 390, 406, 427 engines. All are the same length, have the same output splines, and transmissiom mount position, except Lincoln, which you want to stay away from! I am not sure what standard shift tranny you have now, but the drive shaft and mounts may work with the C-6. You will need to get a flexplate and convertor. Round top unit has one type convertor, low and high top another type. The difference is in the size of the pilot snout that fits in the back of the crankshaft. You will need to remove the standard transmission pilot bushing. AutoZone will loan you a tool to remove the bushing. Starter should work OK. You will need to add an aftermarket cooler. Cheap & easy. You will need to run a vacuum line from the intake manifold or base of the carb to the vacuum modulator at the rear of the C-6 unit. 3/16 hose will work great. Shifter will need to be aftermarket, junk yard, or fabricate your own. Remember to hook up a netrual safety switch for saftey. I dont worry about back-up lights. It's your call. Speedometer should be OK. The factory runs a passing gear rod from the carb to a lever you will find that runs from the middle of the shift lever on the tranny. It is passing gear. It wont hurt to not hook it up. You will need a filler tube for fluid. 12 to 13 quarts of fluid
The C-6 is a great choice. Easy to fix, strong, cheap
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Old 01-21-2006, 02:05 PM
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cool idea and a realy neet conversion . i dont pretend to know alot about transmissions but ive understood that the cleavland is also considerd a small block and being so would be in with the 302, 351 windser imho

keep us posted

bill
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Old 01-22-2006, 04:12 PM
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Quote:
Originally Posted by loosecannon39@yahoo.
help help.
in the not too distant past, one of the mags had an article on adapting a ford truck std shift overdrive unit to a c6 auto (possibly HRM.) if anyone remembers the article please give me a heads up. alternately, do you know the particular trans this unit was available with??? i believe the unit, once completed, was cable operated, although i dont know if it was that way before being removed from the std tranny.
tks
DAN

I think you saw the article about the "Gear Vendors" planetary overdrive unit that fits onto the tailshaft. My friend has one on a C-6 pickup

Super Chevy, Rod and Custom, and Mustang Monthly among others have done articles.

google........ Gear Vendors Overdrive

About $ 2500.
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Old 01-22-2006, 04:24 PM
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Quote:
Originally Posted by "70" Cougar
cool idea and a realy neet conversion . i dont pretend to know alot about transmissions but ive understood that the cleavland is also considerd a small block and being so would be in with the 302, 351 windser imho

keep us posted

bill
Yup, I'm quite sure you're right Bill.
351"C" used the "Windsor / small-block" pattern
351"M" used the "385 / big-block" (same as 400, 429, 460)

I hesitate to use "big block" terminology when it comes to Ford.
http://www.fordclassics.com/enginespecs.html
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