Need Help On C-6 Trans Shift Kit
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From: Southern Cal Desert
Need Help On C-6 Trans Shift Kit
Going to have my 1972 C-6 Trans rebuilt. I want to put a shift kit in there but I don't want anything radical. Can anyone out here recommend a kit? This goes behind a '72 F250 CS with 390.
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Mountain Pass
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From: Silverdale, Wa.
If you do the Trans-go do the stage 1. I had the C6 in my dads 1969 F250 rebuilt probably 25 years ago and used the stage 2 and man it shifts hard. I have since inherited it and just drove it tonight and even thought to myself this shifts a little to hard!
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IMO, the best street shift kit on the market. I have one in my truck.
TransGo C6: 67-1&2
TransGo C6: 67-1&2
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Huh? That is just the type of shift kit. I think the 1&2 refers to the manual hold ability in 1st and 2nd.
Meaning, it will manually shift to first or second regardless of speed.
Meaning, it will manually shift to first or second regardless of speed.
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Mountain Pass
Joined: Sep 2007
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From: Silverdale, Wa.
Stage 1 is like an RV type solid shift at a normal rpm. The stage 2 is a street strip shift it holds longer before it shifts and it shifts pretty hard. I believe they had a stage 3 kit also that made it full manual shift race only. If I remember correct the 1 and 2 are in the same kit.
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From: Southern Cal Desert
I drink decaf anyway so I wouldn't see it either. In any case information given is appreciated.
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From: Southern Cal Desert
The Trans is now at the Tranny shop. Opted to go with the Trans GO, Another question I have is does this kit change the shifting points at all or does it use the old shift points but just changes gear harder? I really hope it changes the shift points. I have never been happy with how my C-6 shifted so early.
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From: El Dorado, Arkansas
Quick, hard shifts may be uncomfortable to some but, the clutches will last a lot longer the sooner the transmission shifts from one gear to the next.
Long, slow, soft shifts generates a lot of frictional heat between the transmission clutches and this heat is then transferred into the transmission fluid.
It's a good idea to run an auxiliary transmission cooler, in series, with the cooler in the radiator on any vehicle that has an automatic transmission.
With transmission temperatures kept under 175-degrees, you should get about 100,000 miles out of the transmission. For every 20 degree rise in transmission fluid temperature above 175-degrees, the transmission fluid life is cut in half.
Plate type transmission oil coolers are more efficient than fin type but any aux. cooler is better than nothing.
I have an OEM Ford plate type trans cooler in my '69 F-100, with C-4, that I robbed from a '92 F-150.
Long, slow, soft shifts generates a lot of frictional heat between the transmission clutches and this heat is then transferred into the transmission fluid.
It's a good idea to run an auxiliary transmission cooler, in series, with the cooler in the radiator on any vehicle that has an automatic transmission.
With transmission temperatures kept under 175-degrees, you should get about 100,000 miles out of the transmission. For every 20 degree rise in transmission fluid temperature above 175-degrees, the transmission fluid life is cut in half.
Plate type transmission oil coolers are more efficient than fin type but any aux. cooler is better than nothing.
I have an OEM Ford plate type trans cooler in my '69 F-100, with C-4, that I robbed from a '92 F-150.
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From: Southern Cal Desert
Update
The transmission has been rebuilt, but the shop is not happy with the shift points and the softness of the shift. He has used a few different modulators, replaced the rubber vac caps, and lines. He has a lot of experience, but its been a while since he's worked on a C-6. What is he missing here? A Trans Go 67-1,2 was installed. I drove it and the shift points are where they use to be, and it does have a soft shift.
The modulator has a white band and is the kind you screw into the transmission. He said that the other colored ones are not screwed into the transmission. He has me on that one fellas.
The modulator has a white band and is the kind you screw into the transmission. He said that the other colored ones are not screwed into the transmission. He has me on that one fellas.