Mechanical Diode On a Tranny with BD 3/20/01?

1382 Views 3 Replies 3 Participants Last post by MARCSPSD, Jul 3, 2016

djtex2010

Discussion Starter · Jul 2, 2016

I just found a good deal on an extremely nice 2001 F250 4x4 with 100,300 miles on it. Code on tranny indicates 3/20/01 build date - right at the end of the dreaded mechanical diode run per Ford's TSB - which says they were included through 3/23/01.

I bought the truck from the original owner who never touched the tranny and pulled a fifth wheel a bunch with it.

My question: Did all transmissions mfg. before 3/23/01 have the mechanical diode?

I'm hoping that this one didn't since it was so late in the run of those trannys and has lasted this long.

Anyone know if all pre 3/23/01 trannys had it, or if they may have phased them out in some trucks made as late as 3/20/01?

If it does have it, is Ford helping out with any discount on a reman for a mechanical diode truck?

Thanks!

DJ

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djtex2010

Discussion Starter · #3 · Jul 3, 2016

Thanks for your reply.

A couple of years ago, I talked to a guy who said Ford sold him a reman tranny at cost on a mechanical diode tranny that didn't get replaced under warranty. I think they had just done it a short time before I talked to him, but I'm not sure.

Wouldn't hope for any more than maybe a discount on one, and wouldn't expect that.

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