Milwaukee Ratchet Repair and Rebuild (For All 1/4" & 3/8" Models)

In the previous video, I tried to fix my nonfunctional Milwaukee M12 3/8" electric ratchet by disassembling it, cleaning it, and putting it back together. This fix work s for 9/10 nonfunctional ratchets of this type. Video here:
• Milwaukee M12 Ratchet ...
That, unfortunately did not work as my tool had a broken crank shaft. For that reason I have to disassemble it completely, replace the crank shaft, and reassemble it. The good news? Now it works! Total success. this tool is fixed and 100% operational again.
To find your replacement CRANK SHAFT, find you model number (in a label on the body of the tool) and follow the corresponding link below:
Replacements Parts for Model 2456-20 (1/4")
www.ereplaceme...
Replacements Parts for Model 245620 (1/4")
www.ereplaceme...
Replacements Parts for Model 2456-21 (1/4")
www.ereplaceme...
Replacements Parts for Model 2457-20 (3/8")
www.ereplaceme...
Replacements Parts for Model 245720 (3/8")
www.ereplaceme...
Replacements Parts for Model 2457-21 (3/8")
www.ereplaceme...
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We hope you enjoyed this video and will keep in mind that all information included is intended to be purely academic and in fact is only the opinion of D&E. We are not professionals, nor are we qualified to knight you a professional. D&E want to ensure that anyone modify or fixing their own vehicle does so in a safe manner which leaves the vehicle in a legal, roadworthy state. In short, DON'T BE A MONKEY WITH A TOOL BOX! If you don't know what you are doing, leave it the professionals!

[@DEInTheGarage]

*PLEASE READ* As is all to often the way, it seems a fatal error was made in this video when I used *ANTI SEIZE* instead of lithium. A momentary lapse in judgement which was quickly discovered and pointed out by a few great D&E viewers. I will be tearing this tool apart tonight, and will have a follow up video linked and carded to ensure that no one else makes the same mistakes. As always, I hope you were still able to enjoy this video regardless of the mistake. Thank you to everyone who pointed out my error and prevented me from ruining the tool I just fixed. #monkeywithatoolbox

[@travisworkman9789]

This has nothing to do with this vid but I'm at a loss my wife wj is over charging the batt from what I have read the voltage reg is in the ECU my question is can I swap it for one a the junk yard? Your knowledge has helped in the past so I figured why not ask.

[@DEInTheGarage]

That should work, but having never tackled that issue before I cannot say 100% that there isnt another area that is causing the issue. I would highly recommend getting on jeepforum.com and asking the question. you WILL get an answer and with WILL be correct. those guys have been dicking around with WJs since the first one rolled off the assembly line in 1999

[@jeffsnyder5456]

I was going to say something but I was to late.

[@JJ-zd5hu]

Bro thank you for such a comprehensive video on this repair and the lithium grease update. watched other videos and they didn't show how to connect the head to the crank. You saved me a ton on money. def earned a subscribe.

[@jtmoffroad]

Such a great score. Even if it never worked, 10 bucks for the battery alone was a good deal

[@DEInTheGarage]

Yea, definitely a good deal

[@83countrysquire]

Yeah when I saw it the guy wanted $30 and I got there and I said it doesn’t work I don’t want it... hold on what will you take so it doesn’t go home with you lol

[@quinton7854]

this video yet a few years late helped me, i didnt want to spend so much on one of these, but with this vid i just bought a broken one, and looks like from what the seller said the base started smoking so looks like it might need a new motor, but dont know yet until i get it

[@t.j.carlson7913]

I just picked up two of these bad boys for $10! I’ll be using your videos to fix em

[@robertoramirez9174]

Where can I find it?

[@travisbarrow3408]

Thanks for this video and th update about the anti-seize. I have the D54B model and all the parts in the link are for D54A. I couldn't find the corresponding ratchet on the site you sourced. My crankshaft broke and I need a replacement. Just so everyone else knows, don't use these ratchets as a breaker bar lol.

[@DEInTheGarage]

I will be completely honest with you. I am not sure what the difference is or where to get the alternative parts. Is your version the Fuel version?

[@ProjectDanH]

Thanks for the anti seize PSA.. I was not in the know either. 🤯

[@outdoorsmansgarage]

Good fix bud didn't seem to be too hard to do. It's always good to put a tool back in service. I guess really the only question you have to ask yourself is how much are those things brand new and is it cost efficient to fix it

[@DEInTheGarage]

In this case, yes. They are pretty expensive new and we got the battery with it. If it didnt have the battery, likely not worth it

[@SethMcSeth]

M12 Milwaukee ratchets are not cheap. Mechanics spend big dollars on tools. If you have the skills fix it.

[@cosmichasm]

After putting the anvil back into the head and popping the snap ring in, my switch stops working like something is bound up inside. Any ideas? The switch works right up until I put the snap ring on.

[@spslife4921]

Great job. How about to convert from 3/8 to 1/4 ? Is it possible to do this ques?

[@danhambrick6331]

Nice job Doug...

[@DEInTheGarage]

Thanks, Dan.

[@therisensun9277]

This video is a life saver 😂

[@TheBeardedJeeper]

$20 bucks isn’t bad. I would love one of those

[@DEInTheGarage]

It is a pretty awesome tool. I am converted

[@pigeonsil240sx]

i have a 1/4 drive miluawkee fuel electric rachet but want a 3/8, can i simply swap out the anvil with a 3/8 one do you know?

[@TheSponge945]

Mine doesn’t seem to detect battery.. the little light comes on but nothing happens on trigger. The 4 batt LEDs also don’t light up, just the built in light

[@BeeLineFab]

I broke the prong off the battery receiver. Is it possible to solder it back on?

[@JesusOrtiz-hz9ld]

Hi there very good video were can I got the bro que part?

[@k20performance42]

i have a question, im from germany and i own a 1/2 ratchet. did the ratchet needs a service ? i mean do i have to give the head fat or something else ?

[@celsito36]

Where did you get the shaft from, i need one for mines

[@jpkillah1]

I’ve already had 2 cranks fail on me, I’m definitely not happy about that, the tool is great but I still use it with the fear of braking it again doing simple repairs. Milwaukee needs to update that part since the 2 times I’ve had them break on me has been removing caliper sliding pin bolts that are torqued to 26 ft-lbs. and before anyone asks no I did not try to loosen them up using the motor of the tool, it was being loosened up by hand before using the motor

[@lukegriffin7920]

Literally broke mine today on slide pin bolt 😭

[@machacek0621]

Do you have any ideas about why mine is so weak? Just disassembled and nothing is broken. Only thing I see is needle bearings are allowing crank to wiggle, not transferring 100% rotation to the driver bushing. I Can’t find bearings alone

[@ryanthomas9869]

My crankshaft just snapped also. Wasnt even putting a ton of force on it. Work bought me the better Fuel version. Just order the new crankshaft and 1/4in anvil. 1/4in is all this thing can handle. Cant believe they even thought about making it 3/8s. The 30ft/lbs it puts out is all it can handle.

[@Jasonitodd]

Anyone know where to buy a new “gearbox”, part number 14-46-0474 for the 2560-20. Only thing I’ve found was a cheap looking replacement for $126. Seems like there should be a cheaper option out there for a tool this old.

[@careycannon4559]

thank you verry much

[@DaireEllis]

How do I know which 3/8" drive model I have? They all look the same.

[@octavioortega3629]

I'm trying to find the part# of the replacement broken part

[@DEInTheGarage]

All in the decription of this video

[@frosted9mm415]

Can I put the 1/4 anvil in the 3/8 ratchet ?

[@DEInTheGarage]

To be completely honest, I am not sure. Sorry

[@CopperheadChuck]

With modification you should be able to. I know a lot of people are taking the new 1/4 inch current generation milwaukee ratchets and adding the 3/8 anvil in those from the previous generation. These is some grinding and sanding required with a rotary tool though.

[@ulisesburgos438]

crankshaft part #?

[@sweaterset]

My driver bearing rolled away when I had the tool taken apart. I think I’m SOL as it doesn’t look like they sell a replacement.

[@DEInTheGarage]

Hmm... I would definitely look around for junk tools for sale. Sometimes you can get these for $20 or $30 because the motor is blown. I dont know if that is worth it to you, but that it probably the direction I would go.

[@anthonymarino4260]

fine job well done

[@MarzNet256]

Cool. I have two 3/8 ratchets and want to convert one to 1/4 using kit 42-06-1005. Do you think this is a good idea or is it just better to use a 3/8 to 1/4 reducer? Thanks.

[@zachariahnajm9924]

Not sure if you ever did this but I verified between the two models of 3/8 and 1/4 drive, the only difference I could find was the anvil

[@MarzNet256]

@@zachariahnajm9924 Thanks for the info.

[@Kstang2790]

Mine is hard to switch directions from forwards to reverse, any suggestions? I need to use pliers

[@DEInTheGarage]

Probably take it apart and clean it.

[@joblessalex]

I think that is a big problem with these. Mine failed trying to pop a drain plug loose. That's it. Literally shouldn't fail doing that. Should need a cheater bar and an axle nut.

[@NoWr2Run]

DO NOT USE ANTI SEIZE ON THE GEARS, GET THAT OUT OF THERE, NOT MADE FOR THAT.

[@bomberman300ex]

100% it has abrasives in it. I have seen quite a few ruined bearings because of it

[@NoWr2Run]

EXACTLY bomberman3000ex.

[@DEInTheGarage]

Thank you for the info, buddy. I guess I got some bad advice. I will tear this down this weekend and re-grease with lithium.

[@DEInTheGarage]

What do you gents recommend for such an application? Lithium?

[@LilasTools]

D&E In The Garage moly grease would be great for it.

[@GregAlanEdwardsEmmanuelRidge]

A little clean up and a couple parts and it's as good as new. Appearance isn't everything!

[@DEInTheGarage]

Works like a charm

[@davidwithers7181]

In your opinion do you think a 1/4 anvil could be swapped for a 3/8?

[@garyhowell738]

I'd buy that for $20 every day of the week

[@Tailgatesntoolboxes]

I cringed when he used anti sieze....i am like noooooo

[@elonmust7470]

My problem with these things is shitty snap rings.

[@dontblameme6328]

That is NOT how the snap ring is reinstalled.

[@DEInTheGarage]

Might not have looked like it in the video, but I assure you it was. I have been using this every weekend since. no issues

[@christianadanparedescarden3877]

Hello, where did you buy the spare part? I have the same problem like you

[@coast2coast792]

Get job with the details.

[@hotrodpaully1]

I stopped watching as soon as he used anti- seize as grease