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TF727 rooster comb

northstart

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Hi,
I have 1967 TF727 transmission in 1970 Challenger. Tranny has 1-prong neutral safety switch without back-up light switch.

From various Mopar forums I learned that updating to 3-prong switch with backup lights (1969 and up) would need also new "rooster comb" inside the tranny.

How difficult is it to replace the rooster comb? The tranny is in the car so I would need to do it from underneath.

Another option would be to fabricate some kind of back up light switch to the Slapstik inside the cabin. Has anyone done that?
 
Last edited:

oldkimmer

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U will need to pull the valve body. Also there is different length arms on the rooster comb so u have to match them up. Or u could change the valve body. Kim
 
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