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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

M5R2 Bearing Replacements

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Old Dec 20, 2025 | 03:58 PM
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M5R2 Bearing Replacements

First post because I can't seem to find a lot of information online despite searching.
I have a 88 f150 with the m5r2 5 speed that I need to replace the input shaft bearing for and I can't seem to find anything online on where to get a correct sized fit. If anyone knows where I can get one please let me know. I have seen some on eBay that might work but I just have no idea on the sizing of the ones on eBay.
picture of the truck for eye candy

 
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Old Dec 20, 2025 | 04:35 PM
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Welcome to FTE. Parts seem to be all over the net for the m5r2! Like this place for example. M5R2 Standard Transmission Input to 3-4 Hub Needle Thrust Bearing (AXJ42X58.9X3.7) - Cobra Transmission
 
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Old Dec 20, 2025 | 05:08 PM
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Originally Posted by spurredon
Welcome to FTE. Parts seem to be all over the net for the m5r2! Like this place for example. M5R2 Standard Transmission Input to 3-4 Hub Needle Thrust Bearing (AXJ42X58.9X3.7) - Cobra Transmission
oh man how'd I miss that. Is cobra a good place? online reviews seem decent
 
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Old Dec 22, 2025 | 12:29 PM
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In November I fully rebuilt my M5OD-R2. I used the bearing/synchronizer kit from USA Standard Gear. The best price I found at the time was on Amazon -
https://www.amazon.com/dp/B07JH3RPWJ https://www.amazon.com/dp/B07JH3RPWJ
For most other parts I used https://www.transmissionpartsdistrib...2-rke-5-speed/ I was able to find all but one set of needle bearings through these two places. The old ones still looked good so I kept them.
 

Last edited by adrianpglover; Dec 22, 2025 at 12:31 PM.
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Old Dec 22, 2025 | 05:03 PM
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Originally Posted by rusting88
oh man how'd I miss that. Is cobra a good place? online reviews seem decent
I have never dealt with them, but Adrian makes a good recco!
 
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Old Dec 22, 2025 | 05:43 PM
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While you have it off, it's a good time to check the play in your shift forks. I had to replace the two that the previous owner hadn't had replaced. The gap was 3-4x the max allowed per spec.
 
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Old Dec 23, 2025 | 07:36 AM
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https://www.midwesttrans.com/product...-transmissions

I bought my ZF parts from them. Good joint. If you are in there, you may as well do all the bearings and swap in fresh syncros.
 
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