Getting ready to replace (hope it fits) the Ford 3.03 in my Model A with an oddball AMC transmission (I have other posts on it) that is essentially the same case but with a Lay**** de Normanville planetary OD out back... Anyway. These seem to check out to me and the bolt holes all line up, just wondering if there's something I'm missing. They both seem to interchange on the other transmission...the one on the left is about 1/4" smaller diameter, which is what I need for my bell housing. If they interchange then I don't need to find someone to machine the other one. Thanks.
It’s common to turn the ford ones down to fit newer units to the Yblock, I’ve done that. I’d look close at the input shaft on both transmissions for signs of wear, grooving etc. that the seal might have conformed too. And double check the length into the pilot bearing. But I’d they both look good and weren’t leaking you’re probably good to go. Pictures of the opening to get the shift towers in and out from the other post?
Mike, just a question from the peanut gallery, would a Speedy Sleeve fix the problem if there is a groove? I have used them in other places to excellent results.
I can’t answer that, I’ve never been down that road except for crank dampers. I was hoping someone else with more knowledge would chime in on that for Dey’s benefit. Last thing you want is a leaking seal in the bellhousing. Especially on a Yblock, where you’ve probably already got one.
HMMMMN... I guess the HAMB stopped telling me when I have replies... Miker- I was just coming back to this thread to send it to you over on the YBF site to get your insight and found that you and others had replied here... There was a bunch of oil when I loosened up the bolts that held the OLD trans to the bellhousing. The portion of the input shaft where the splines are is a bit wobbly on the OLD one that came out. I DID get a new seal for this bearing retainer. Is that just a "pull the old one out, and shove the new one in" situation or does it get greased/ other tricks? Also picked up a new throw out bearing. The input shaft on the "new" unit is new, as far as I know. I believe the overdrive guru rebuilt the whole thing. My newest concern is where the ladder bars come in being right around where this NEW unit starts bulging out. Got some buddies coming tomorrow to see if we can make this work. I kept saying that at least if I couldn't get this new one in, the old one would go back, but that looks like it's tired now that I have it out. Thanks again. Say a prayer for me! LOL...and anyone within earshot of whatever tantrum(s) I'll be having over the next few days.
One more question...if I wanted to make sure that the bearing retainers are, in fact, the same and won't leak (after I replace the seal)...would I put some oil into the transmission and tilt it forward and just look for leaks?
Make sure the pilot bearing in the crankshaft is good. With a new shaft and a new seal I wouldn't even bother to check for leaks. I would check the input shaft end play with the other bearing retainer to make sure it doesn't change.
Ran into a snag...seemed to be going well but this new transmission didn't have the correct bellhousing bolt pattern...the OLD one had both, so I made a template. I'm guessing that one of the bolt holes is just the slightest bit in one direction because it won't slide that last 1/8" into the bellhousing. They all thread in, and it seems like everything else is clear- throw out bearing, splines fee engaged, etc. Doing all of this with a mechanical engineer...and I'm glad I am. We're going to do a closer inspection tomorrow.
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