RE: pilot bushing dos and donts

This is a very simple fix the crank is either drilled AND reamed for a pilot bushing or it just drilled. NAPA sells a pilot bushing for this drilled BUT NOT REAMED episode. 610-xxxx is the part number, I am going from memory as I kept those in my tool box years and years ago. This bushing has a smaller O.D. allowing it the press into a non reamed crankshaft.

On Thursday, September 8, 2022, 12:46:32 AM EDT, Bill Parker <hemirr@xxxxxxxxx> wrote:

I may or may not have already sent a reply albeit leaving out the item number I was going to post. But here goes again. As already described you do have to separate the engine and trans to find out. If your 440 came new with an automatic trans it will not have a full pilot hole. The quick and inexpensive fix, again as already described, is a pilot bearing that fits in the crank recess. See eBay item 295180519557 for one of these and there are other listings. This item started out as original Mopar but as said, there are repros now too. You do have to cut off some of the trans input shaft tip with a cutoff wheel and chamfer it a fit for ease of assembly, or technically you could go to the trouble of taking the crank to a machine shop to be bored and reamed for the original bushing, particularly if you are going to disassemble the engine anyway.

Rick Ehrenberg did a Mopar Action article on this but I cannot recall how much has to be cut off. I did use this method years ago on a four speed changeover. I even have a Mopar special driver tool somewhere that seats the bearing in the recess nice and flush but it can be done with a punch.

On Wed, Sep 7, 2022 at 7:52 PM neal zimmerman <neal.zimmerman@xxxxxxxxx> wrote:

how can one tell if a 440 crank is machined for a pilot bushing ? And if it is not, would it require disassembling the engine to do so?
neal zimmerman

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Bill & Kathi Parker, South Central Indiana

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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!

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