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05-15-2021, 01:56 AM | #1 |
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Mating an 8ba with a 1939 trans help
Hey guys. Does anyone know of a book/manual I can purchase that shows the step by step process of installing a bell housings/clutch on an 8ba as well as the process of mating up a transmission. I have an 8ba with a bell housings/starter plate & 1939 Ford top loader trans. I just want to make sure I do it right as I’ve never done this before.
Thanks Josh |
05-15-2021, 03:56 AM | #2 | |
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Re: Mating an 8ba with a 1939 trans help
Quote:
Hey Josh! It's actually a pretty straight forward process. 1....Install flywheel. It MUST be a '49-'53 8BA-type flywheel. The six threaded clutch bolt holes are drilled all the way thru the 8BA flywheels. Earlier flywheels, these bolt holes are 'BLIND'. Also make sure you haven't forgotten the PILOT BUSHING. 2....Using a 'dummy' alignment tool or a spare input shaft from an old transmission, align the clutch disc as you bolt the pressure plate to the flywheel. 3....Then, you will bolt-on either your STAMPED STEEL (RED) half bell from a '49-early '51 Mercuty with STARTER Plate, or a CAST IRON (BLACK) half bell with it's correct Starter Plate. Note....the cast iron allows 11" clutch use, whereas the stamped-steel Merc piece only allows a 10" clutch. 4....Place your throw-out bearing on the snout (bearing retainer) at front of trans. Don't forget to attach the small return spring at top of throw-out bearing, as seen in picture below, complements of Mac VanPelt. 5....Now, only a simple matter of lifting that heavy trans and stabbing the splined input shaft into the splined center of the clutch disc. Some folks take two long bolts with the hex heads cut-off and hand thread them into the 1/2-bell holes at 9 o'clock and 3 o'clock to help support and guide the trans into position. It helps (SOMETIMES) to put the trans in gear to prevent the input shaft from turning as you attempt to mesh the trans/clutch splines. That is a precision fit that sometimes takes a couple of cuss words to make things mate. Make sure you slide the trans all the way up to the 1/2-bell BEFORE running the bolts up tight. This should get you there, and this last pic shows about what you should look like! DD ........ Last edited by V8COOPMAN; 05-15-2021 at 01:20 PM. |
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05-15-2021, 04:19 AM | #3 |
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Re: Mating an 8ba with a 1939 trans help
Heck of a great post coop.
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05-15-2021, 06:08 AM | #4 |
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Re: Mating an 8ba with a 1939 trans help
I'll say!! Outstanding!!
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05-15-2021, 09:02 AM | #5 |
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Re: Mating an 8ba with a 1939 trans help
Thanks V8COOPMAN, great process and pics. Do you have the p/n for those cuss words or can't any generic ones work?
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05-15-2021, 09:09 AM | #6 |
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Re: Mating an 8ba with a 1939 trans help
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05-15-2021, 09:38 AM | #7 |
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Re: Mating an 8ba with a 1939 trans help
Wow. Thanks coop. I was just looking for a book or manual to find the info & you went above & beyond with a full on tutorial. Thanks a lot I really appreciate it.
Josh |
05-15-2021, 12:06 PM | #8 |
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Re: Mating an 8ba with a 1939 trans help
Great post DD. As I remember it, you have to use a Mercury clutch disc to match the splines on the transmission (1 3/8" vs 1" on an 8BA?) and an appropriate pressure plate (either a Mercury with a re-drilled flywheel or something else that matches up?).
It's been 30 years since I did this, but with the proper parts from your FLAPS, it all goes together easily. |
05-15-2021, 01:19 PM | #9 | |
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Re: Mating an 8ba with a 1939 trans help
Quote:
"Darn", "heck" & "poo" (on steroids) ought to work in most situations! DD |
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05-15-2021, 01:28 PM | #10 | |
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Re: Mating an 8ba with a 1939 trans help
Quote:
What would be wrong with using a MUCH-MORE-COMMON 8BA flywheel & pressure plate, along with a "pre-'49" disc for the 1-3/8" spline? DD |
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05-15-2021, 01:38 PM | #11 |
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Re: Mating an 8ba with a 1939 trans help
If that's what works, fine. I just know that there has to be some mixin' and matchin' of parts because of the difference in spline size, but don't remember the exact combination. I do remember that it's pretty simple and the parts are easy to find (at least they were 25 years ago).
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05-15-2021, 05:24 PM | #12 |
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Re: Mating an 8ba with a 1939 trans help
V8 set you straight.
I used the 49-51 Merc flywheel, clutch and pressure plate. Clutch is 10 in. Also used the stock 1940 Ford throw out bearing. LIKE V8 said, "Don't forget the pilot bushing/ bearing" in the flywheel. I used a sealed bearing. Last edited by 19Fordy; 05-15-2021 at 05:59 PM. |
05-16-2021, 03:30 PM | #13 |
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Re: Mating an 8ba with a 1939 trans help
Yeah, that is the same thing I was thinking, as it is whole lot easier to find!
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05-16-2021, 03:37 PM | #14 |
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Re: Mating an 8ba with a 1939 trans help
Jeez, you guys are tough. My only point was that you can't do it with all 8BA parts or all early parts.
I believe that this kind of basic information would be valuable to the O/P. |
05-16-2021, 03:52 PM | #15 | |
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Re: Mating an 8ba with a 1939 trans help
Quote:
Exactly how I did it with the 8ba in my '39 p/u
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Making the simple complicated for over 30 years. |
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05-16-2021, 04:51 PM | #16 |
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Re: Mating an 8ba with a 1939 trans help
Ok. So here’s some more craziness to add to the mix. So I have a 1939 3 speed top loader 78-7006. Can I use the gears from the side loader trans (see photos). I’m not sure what year trans it is. I’m having a hard time reading the numbers & deciphering off of van pelt sales what the side loader is.
Also, I’m posting photos of the pressure plates, flywheel, clutches, bell housings, & starter mounting plates that I have. Maybe all these pics will help figure out what I can & can’t use. Thanks guys. Your knowledge is invaluable. |
05-16-2021, 04:58 PM | #17 |
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Re: Mating an 8ba with a 1939 trans help
I’m having trouble uploading photos.
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05-16-2021, 05:13 PM | #18 | |
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Re: Mating an 8ba with a 1939 trans help
Quote:
Below is a '40 through '48 "SIDE LOADER" trans, so-called because it's shifting is accomplished via the shift arms on the side, instead of on the "top"! Replace the entire gearset from your "side loader" into your "top loader" trans. It's a great gear set, and is actually the same design as the '39 Ford gear set. Show us some pictures! DD Side Loader Trans |
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05-16-2021, 05:17 PM | #19 |
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Re: Mating an 8ba with a 1939 trans help
If you're still having trouble posting, e-mail 'em to me and I'll post 'em for ya. DD
e-mail: [email protected] |
05-16-2021, 05:30 PM | #20 |
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Re: Mating an 8ba with a 1939 trans help
I called and talked to the people at Fort Wane clutch. They sent me the whole setup for my 53 Merc. EAC mated to a 39 trans that has a 9 1/2 clutch. With the cast bell housing it's a bolt in the clutch plate has the 10 spline and the larger T,O,Bearing. They are the GO TO People in my book.
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05-16-2021, 06:19 PM | #21 |
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Re: Mating an 8ba with a 1939 trans help
Here's more interesting info. about this topic.
https://www.google.com/search?q=will...hrome&ie=UTF-8 |
05-16-2021, 11:16 PM | #22 |
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Re: Mating an 8ba with a 1939 trans help
Here’s the 39 trans
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05-17-2021, 12:01 AM | #23 | |
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Re: Mating an 8ba with a 1939 trans help
Quote:
Sorry I should have said great F%ckin' post. hahaha. Just trying to be a bit family friendly I stand by saying it's a heck of a great post. Very nice of you and informative. Too often we are not sharing openly. Last edited by Tinker; 05-18-2021 at 08:21 PM. |
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05-17-2021, 08:26 PM | #24 |
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Re: Mating an 8ba with a 1939 trans help
Here are Josh's pictures! DD
1937-'39 Top Loader 1937-'39 Top Loader Pair of CAST IRON "8BA" TRUCK 1/2 BELLS & Starter Plate Big Truck "Hog's Head" 1940-'48 Side Loader 1940-'48 Side Loader 1940-'48 Side Loader 1946 Ford Side Loader via Serial # 1946-'48 Ford Flywheel 1946-'48 Ford Flywheel ........ |
05-17-2021, 09:56 PM | #25 |
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Re: Mating an 8ba with a 1939 trans help
v8. Thanks for an excellent post plus photos.
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05-20-2021, 01:33 AM | #26 |
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Re: Mating an 8ba with a 1939 trans help
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1. Can I use the gears out of the side shifter in my 39 top loader? 2. Can the psi plates I have be reused? 3. Will the bell housings & starter plates I have work with what I have? 4. Can anyone tell from the pictures if my flywheel is ok? Thanks Fellas |
05-20-2021, 03:39 AM | #27 | |
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Re: Mating an 8ba with a 1939 trans help
Quote:
Hey Josh....You're welcome on the pics. 1....You CAN use the gears from the side shift in the '39 box. The gears are identical in design, but.....swap as a COMPLETE SET. 2....If you mean 'PRESSURE Plates', you can't tell if they're any good by looking. They're reasonable enough, and it's something you don't want to think about pulling an engine out to do over. Contact Mac VanPelt or Ft. Wayne Clutch. 3....Yes, but the STARTER Plates MUST be a match for the individual bell that you use. 4....You can NOT use that flywheel on an 8BA. It looks awful, anyway! Your flywheel is a 1948 and earlier wheel. You can tell because the LATE (8BA) wheel has the six clutch bolt holes drilled ALL the way through the wheel. Your holes are "blind"....NOT drilled all the way thru. Also, your ring gear appears to be the WIDE (EARLY) one. Good, used 8BA flywheels are available. I'd be willing to bet someone on the 'Barn here might have one to donate for postage, or you can advertise for one in the "WANTED" section here. But NOTE the difference in height between the early and 8BA wheels. Starter will NOT line-up properly with wrong wheel.....whew! DD EARLY (WIDE) Ring Gear on LEFT EARLY On LEFT ........ |
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05-20-2021, 06:31 AM | #28 |
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Re: Mating an 8ba with a 1939 trans help
It's really great when a person posts a reply that gives much needed detailed
tech info. on parts needed to answer a question like V8 (and others ) do. Thanks. |
05-21-2021, 07:57 PM | #29 | |
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Re: Mating an 8ba with a 1939 trans help
Quote:
I have another flywheel that is attached to a crank still. Also the flywheel from the previous pictures actually has holes that go all the way through. Maybe neither will still work. I try to submit the photos. Let me know what you guys think. Thanks Josh |
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05-21-2021, 08:14 PM | #30 |
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Re: Mating an 8ba with a 1939 trans help
Here’s some pics
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05-21-2021, 08:26 PM | #31 |
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Re: Mating an 8ba with a 1939 trans help
Here’s the flywheel that was posted previously showing that the jokes go all the way through. Maybe I’m not understanding what you meant by the holes.
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05-21-2021, 08:42 PM | #32 |
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Re: Mating an 8ba with a 1939 trans help
Oh. I figured out the photo posting. My images where too large so I had to make the files smaller to post. Thanks again for all of your help fellas. I really appreciate it.
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05-22-2021, 03:36 AM | #33 | |
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Re: Mating an 8ba with a 1939 trans help
Quote:
Josh....As you can see in #4 ABOVE, I was referring to the OUTER six, THREADED bolt holes for securing the pressure plate to the flywheel. I WAS NOT referring to the six CENTER holes where the wheel attaches to the crank flange. Notice the REAR side of the flywheels....the side TOWARD the crankshaft. On the REAR side of the 8BA flywheel, those 6 threaded holes are evident. NOT so on the 1948 and earlier flywheel. YOUR Flywheel...NO Thru-Holes at OUTER Edge ........ |
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05-22-2021, 10:25 AM | #34 |
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Re: Mating an 8ba with a 1939 trans help
Oh man. Ughhhhh. I completely misunderstood. Sorry about that. Thanks for explaining. I’m learning a lot. I will create another post to try & find the correct flywheel.
Thanks Josh. |
05-22-2021, 11:47 AM | #35 | |
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Re: Mating an 8ba with a 1939 trans help
Quote:
Hey Josh....Don't feel badly! I'm completely 'misunderstood' a large majority of the time. One of the main reasons MOST of us are here is in an attempt to "learn a lot". Is this a great place......or what? DD |
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