Copied this from a older post don't know if it helps. "Frank, I'm not a member of the Slant 6 group, however I receive technical inquiries from members quite often. I'll address your question, however with an e-mail address I could forward a picture of the Torqueflite upper valve body casting showing the necessary factory feed-port location to actuate the part-throttle downshift accessory. Installing either of the 2 OEM part-throttle accessories onto the 1960-66 Torqueflite valve bodies can be done in 2 ways. Easiest method is to obtain a 1967 (preferable) or 1968 upper valve body casting and simply mate it to the 1960-65 or 1966 lower casting & separator plate. The 1967 casting allows installation of the front pump check valve; the 1968 casting does not. My experience has been that the Torqueflite will operate properly and dependably without the front pump check valve in this case. To install the part-throttle accessory onto an original 1960-66 upper valve body casting it is easiest to use the 1971+ part-throttle version. The first step is to locate the necessary internal passage in order to access it to obtain the actuating pressure for the part-throttle installation. Once located the internal passage can be accessed externally by "step-drilling" part way into the passage with a 3/16" drill bit modified to a blunt tip and re-sharpened. The 1971+ part-throttle valve body accessory will also need to be "step-drilled" on the topside to accept a 3/16" tube configured to join it with the new port in the upper casting. Once both new holes are drilled it is a simple matter to fabricate the 3/16" tubing to connect the 2 new ports. I generally also fabricate a piece of light sheet metal to serve as a clamp to secure the tubing from dislodging from either port. A sealer can be applied to each end of the tubing, however if the fit is tight between tubing and the 2 new holes the P/T should work even with a slight bit of leakage. Sent from John -- -- -- Please address private email -- email of interest to only one person -- directly to that person. That is, email your parts/car transactions and negotiations, as well as other personal messages, only to the intended recipient. Do not just press "reply" and send your email to everyone using the general '62-'65 Clubhouse public email address. This practice will protect your privacy, reduce the total volume of mail and fine-tune the content signal to Mopar topic. Thanks! 1962 to 1965 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html. -- You received this message because you are subscribed to the Google Groups "The 1962 to 1965 Mopar Mail List Clubhouse" group. http://groups.google.com/group/1962to1965mopars?hl=en. --- You received this message because you are subscribed to the Google Groups "The 1962 to 1965 Mopar Mail List Clubhouse" group. To unsubscribe from this group and stop receiving emails from it, send an email to 1962to1965mopars+unsubscribe@xxxxxxxxxxxxxxxx. For more options, visit https://groups.google.com/d/optout. |
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