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1990 4.9 5 speed manual Blown Tranny

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Old 01-15-2013, 04:45 PM
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1990 4.9 5 speed manual Blown Tranny

Hi folks. I took the ID number off the side of the Transmission E9TA-CA than it goes on with 902758. I think it's the mazda 5 speed, but I don't know what gear ratio it is. I want to make sure of what I have before buying a replacement. Any help would be appreciated. Thanks.
 
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Old 01-15-2013, 06:46 PM
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Yes, this suggests you have the Mazda:

What Ford transmission do I have, Toyo-Kogyo, Maxda M5R1, M5R2, Mitsubishi, FM145, FM146, FM132 - Drivetrain.com

What do you mean "what the gear ratio is"?

I have to think any salvage yard will be able to find you a tranny armed only with your tranny ID number.

Maybe you want to consider the upgrade to the ZF tranny?

It would help if you'd put your truck details in your signature.

Roy

Roy
 
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Old 01-15-2013, 06:54 PM
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Before you run out and buy a replacement, how exactly is it "blown"? Reason I ask is that I fixed my M5R2 by simply swapping in a new fork. And the way the M5 is designed, this can easily be done by pulling the shifter assembly.
 
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Old 01-15-2013, 06:58 PM
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This is a good time to upgrade to a ZF5 from an F250 HD or F350. If you can find one anyways. You'll need a small block one to fit your F150 witch should have an inline 6, 302 or 351.


So you'll need another tranny, ZF or Mazda off another truck with those above engines.



What did happen to yours anyways? Did it run out/low on oil?



Either way, on your next one, if you get another M5OD Mazda tranny, before installing it in the truck, heres something you should do, as this is the #1 cause of failure for these trannies.

M5OD Mazda Design Manual Five Speed Transmission Preventative Measure .: Articles


Those bushings are on top of the tranny shift tower, facing the rear. They are accessible with the tranny installed by removing the floor carpet, and floor hump but since you'll have in hand, be a good idea to do it now.
 
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Old 01-15-2013, 11:19 PM
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Not really sure what the cause of the failure is or was. The truck has 143,000 miles on it. Been a daily driver for the past 2 months. Everything semed fine, even drove it on a 2000 mile trip over thanksgiving day weekend. Granted I have not checked the oil in a long time, I haven't noticed any leaks, so I didn't even think about it. Cruising along at 65-70 and a loud "pow thump thump thump" I thought I had dropped a u joint. But after I got back in, started the truck, it ran fine but no gears in 1,2,3 and 5th. I never checked reverse. I had 4th, so I drove home 25 miles in 4th. For the guy that didn't know my details, 1990 f-150 pick up strait 6 4.9L 5 speed. Thanks I'll press on and I'll know more when I take it out.
 
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Old 01-16-2013, 07:54 AM
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Originally Posted by OKrumple
But after I got back in, started the truck, it ran fine but no gears in 1,2,3 and 5th.
Given this ^^^ I would start by putting the shifter in neutral (if possible), and then pulling the shifter/fork assembly, which can be done from inside the cab. It's easy to do once the center cover is removed. It's this assembly.... Ford Truck M5R2 5 Speed Shifter Cover Assembly Shift Fork New Seals New Bushings | eBay

My best guess is that your problem will be immediately obvious, and as long as you haven't trashed anything else, you can simply replace this assembly.

Of course, if you're looking for an excuse to upgrade to a ZF, feel free to just go ahead and do that.
 
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Old 01-16-2013, 12:19 PM
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Originally Posted by DPDISXR4Ti
Given this ^^^ I would start by putting the shifter in neutral (if possible), and then pulling the shifter/fork assembly, which can be done from inside the cab.
I could be reading bad sources (or not remembering correctly), but I thought you were supposed to put it in first to align the shift forks?
 
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Old 01-16-2013, 12:39 PM
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Originally Posted by Yaga1973
I could be reading bad sources (or not remembering correctly), but I thought you were supposed to put it in first to align the shift forks?
Indeed those are misguided sources, and I speak from the experience of having followed those bad instructions. If you put it in first and then remove the assembly, when you go to put it back in place, the shifter gets locked in place. Fortunately, it's not difficult to get it back into neutral at that point IF you know the "trick" to doing so. There's a thread with pics and details I posted on this if needed.
 
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Old 01-16-2013, 03:34 PM
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Not sure what I'm looking for, now that I have the shifter and top cover off. The forward gear or whatever was suppose to be there looks like it's gone! I might have to start a new post, I wanted to attach a couple pictures. How do you do that?
 
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Old 01-16-2013, 06:13 PM
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Originally Posted by OKrumple
I might have to start a new post, I wanted to attach a couple pictures. How do you do that?
You'll first need to upload them to a pic site such as Photobucket. Then you can insert the address of the pic into your message by clicking on the icon above that looks like a mountain with yellow background.
 
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Old 01-16-2013, 09:19 PM
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Originally Posted by DPDISXR4Ti
Indeed those are misguided sources, and I speak from the experience of having followed those bad instructions. If you put it in first and then remove the assembly, when you go to put it back in place, the shifter gets locked in place. Fortunately, it's not difficult to get it back into neutral at that point IF you know the "trick" to doing so. There's a thread with pics and details I posted on this if needed.
That is GREAT to know! I'm glad I asked the question, that is for sure. I figured that you've had a couple of them apart before.

Thanks, Brad!
 
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Old 01-16-2013, 10:24 PM
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So that place in 1st gear thing is false? What is the correct thing to do? Put it in Neutral?
 
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Old 01-16-2013, 11:07 PM
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Here is the inside, forward
 
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Old 01-16-2013, 11:14 PM
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Second photo
 
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Old 01-17-2013, 08:17 AM
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Yep. 4th gear is gone. I would just get a new used tranny.
 


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