Need Help Confirming I’ve Got The Dana 44 Power Lock (or Powr-lok) I’m Looking For.

After about a 6 month long search, I finally was able to track down a used Dana 44 power lock 19 spline. The problem is, the person who owns it is doesn’t know much about it.

He said the markings that are stamped on the carrier are 23209X and a date stamped 12-26-67A.

What I need it to be for is a Dana 44, and it needs to be 19 spline and for 3.92 gears and higher. Id like to use my 4.27 gears. Does anybody know where I can find data or any information to find out if this is the right power lock that I need? Any help is greatly appreciated!

 

A photo would answer this in some fraction of a second.

 

PowrLok 23209X is a 19 spline D44, series 4. It is for R&P ratios 3.93 - 5.38.
Hope this is what you need.
-Donny

 

Yes! That is exactly what I needed to hear! I’m going to go ahead and proceed with purchasing this.

Donny, may I ask how you came across that information? Is there a chart on a website somewhere that I can’t seem to find?

 

http://www.earlycj5.com/xf_cj5/index.php?threads/144336/

 

Since we’re on the subject, I’ve got another technical question regarding Dana 44 power locks.

I reached out to Herm the overdrive guy a couple days ago, because I almost gave up on my search for a used one. Anyway, he sent me a quote that seemed interesting:


It looks like he’s trying to sell me a series 3, and then a spacer disk so I can use for my 4.27 ring gear. I think I understand what’s going on, but my big question is what are these “center pins” he’s referring to?

 

I, and at least a couple others on this forum, have been collecting and verifying the “X” numbers for more than a decade. I have an incomplete list of close to 30 different numbers for D25, D27, D30, and D44. Some of my numbers are from Dana publications I have bought, and a few are from original parts manuals. Others are from used units offered on this forum, other forums, and or eBay. Lots of notes over the years!
What is the R&P ratio/ tooth count of those in your photos of the PowrLok?
-Donny

 

He told me the ring gear that’s on it is 4.27. And at first I was ready to pull the trigger on this power lock, but then I did a little research and I found someone on this form that said the same numbers (23209X) were for 3.92 and down. And then, after I received a quote from herm, I learned you can buy a series 3 carrier with a spacer. My head starting spinning so I reached out. I’m purchasing this power lock sight unseen, so I wanted to be 100% sure it’s going to work for my application.

 

Yes, it sounds like Herm has a Series 3, and a spacer with longer bolts. The center pins are “spacers” that the right and left axle shafts butt into so you can set the proper end float clearance.
If this diff was just removed, they may still be in there. In my opinion, your better off with the correct series 4, without spacers.
-Donny

 

The diff you posted photos of (23209X) will accept 4.27 gears. If your rear axle already has 4.27 gears, you can likely leave your pinion gear untouched. Just swap your “open” diff gear over to the PowrLok if the bearings on it are good. If the bearings are rough, at least note the shims when you pull them. You will likely need setup bearings if your going to try to set these up yourself. I always find the pinion is the hardest to get the shimming right.
I asked what the gears are on the PowrLok, and could be interested in 4.09, 4.27, or 4.88 gears.
-Donny

 

Donny,
I recently rebuilt( more so, cleaned up) my Dana, 44 with new seals and bearings about a year ago. I’m hoping that I could simply swap my open carrier with this power lock using the same bearings.

If that’s the case, do I need “center pins”? And if the used power lock I’m buying doesn’t have them, where can I buy some?

and I can ask the owner if he’ll ship me that ring gear and if he can track down the pinion gear, would you be interested?

 

buy this
https://www.vevor.com/bearing-inner...glEHO1OHKlOnqaeogDb7OrC6eCCjEXWgaAv1VEALw_wcB
You can remove bearings without damaging them. I have this and it works GREAT!

Even cheaper..
https://www.ebay.com/itm/3939056131...V6LsnE-l9C1TW2s6uL5FVOzM1xrQ56A0aAshYEALw_wcB

 

Another way to determine the difference between Series 3 and Series 4 is to look at the outside of the case. Series 3 will show " 44 Auto",
Series 4 will show "44 STD".

FWIW,
Mike

 

Thanks for the info Mike. The Power Lock is in route to my house as we speak. I should have it Monday or Tuesday next week. When I receive it, I'll look for those markings.

 

I finally received my power lock in the mail from Buffalo New York yesterday and I’ve got a few questions if anyone has time to answer. I’d appreciate it.

Does anyone know the part numbers to replace the bearings and the races? Are they the same size as the ones on my open carrier that are in my Dana 44 now?

The ring gear that’s on the power lock is the same ratio of the ring gear in my Dana now which is 4.27. Can I keep the ring gear that’s on the power lock, or do I need to remove it and use the one on my open carrier now?

And finally, I was told this power lock was hardly used in the past. However,it sat on the shelf for over 40 years. I’m going to take it apart for a proper cleaning, should I just go ahead and replace the clutch packs while I’m in there?


If I’m missing something or any other advice to help with installation would be greatly appreciated!

 

Awesome! I’ll read your write up later. I definitely plan on tearing it apart and inspecting each clutch. I plan on buying a bearing puller this week. Any advice on how to press the bearings on without owning a press?