Rear axle-parts identyfication
 

Hi, I must change some parts in rear axle-probably not oryginal axle.
I change oil in rear axle and after long winter standstill i saw some leaks- fluid brake and gear oil :/
I dont know how to find parts to seal axle- i need pinion seal and seals on the edge of axle (i dont know how this part is named)
I also need a brake cylinders but i find them on ebay
https://www.ebay.com/itm/354118089849

And i think something is not right with brake adjuster lever- on foto

Re: Rear axle-parts identyfication
 

that's a hub seal on the edge of the axle. You can take the old one to an auto parts store or measure your axle hole in MM and have them look up a part that fits.

Post some pictures of the whole axle and a close up of the pumpkin (the fat part in the middle of the axle) and I bet someone on here knows what model it is.

Re: Rear axle-parts identyfication
 

On my rear axle hubs (Dana 60 full floating axle, just like your), the seal part number is: Timken 455860 The old seal should also have the part number on it as well.
Here is one location for the seals: https://www.rockauto.com/en/moreinfo...pt=1860&jsn=21

Part number for the bearing cups and cones should also be on the part.

When you take the hubs apart to clean/inspect the bearings. Be sure to coat them with rear axle oil before installing them back into the hub. Once the truck is back on the ground and the rear axle is serviced. Use a jack to pick up one of the rear wheel (as high as you can jack it) to allow the rear end oil to flow to the hub bearings. Let it stay that way for about ten minutes. Then let it down and do the other side. When you place the truck back on the ground, service the rear axle oil level (it should be a little low). I would also drive it for about a thousand miles (don't have to be all at once, just enough to warm up the oil) and recheck the oil level again, oil flow better when it is warmed up.

Also if you wanted to convert to power disc brake, here is what I did: https://6066gmcclub.com/album.php?albumid=323

If you want info for the power disc brake let me know.

Re: Rear axle-parts identyfication
 

I need to order parts before I start working with it, because the car is in Europe, and here we don't have parts for old American axles :) I will try to take more pictures of axle

Re: Rear axle-parts identyfication
 

That's a Dana 60 axle. Your truck is a GMC 1500, not a 1000.
Order parts from rockauto.com, they ship internationally. A great company for all your US car parts needs. Not everything they list is correct for each type/year. Use common sense and measure before ordering and you'll be good to go.

I also had soaked brake shoes, I cooked them in a large pan full of water and washing soda and they came out like new. The water absorbs the brake fluid and the soda removes the grease and oil.

Re: Rear axle-parts identyfication
 

I added some parts to the cart, but I don't know if they are the right parts-the seals are listed for different axles but I don't know which one is mine.
Can you please check it out?
https://www.rockauto.com/en/cart/?ca...0d0af598136fac

Re: Rear axle-parts identyfication
 

This is a list of parts that I used for my Dana 60 Full Floater axle repairs.

The FEL-PRO 55350 is too large for our axle.

Re: Rear axle-parts identyfication
 

The list looks OK, needs a couple of changes:

The wheel seals are incorrect, you need the 2x the NATIONAL 455860 or SKF 23844.
Look for Spicer 60-1 axle, this is the same as Dana 60 axle that you have. The 60-35 is a different axle, do not order parts for this axle.

I always reused the axle flange gaskets, they should be aluminum and easy to clean up and reuse. Measure yours to make sure you order the right ones.

You only need 1 pinion seal, but if yours does not leak do not change it out.
National is a quality brand for seals. The pinion is where the driveshaft connects to.

Wheel cylinders look fine.

The trick with Rockauto to try and order everything from 1 location. This saves on shipping costs.

Good luck!

Re: Rear axle-parts identyfication
 

My pinion is leaking, so I need to replace it. And a few parts I'm ordering for the future, as I plan to do a major overhaul and replace anything that is old and may have worn out. Besides, shipping from the usa to Poland is more than 30% of the value of the whole, so I'd rather order too much and just leave a part unused. The shopping cart is gone, so I have to do it all over again :/

Re: Rear axle-parts identyfication
 

Yeah shipping costs a more to Europe but Rockauto is very economical in shipping compared to other stores.
If you need to replace your pinion seal, order a new pinion nut as well.

Order a shop manual too, Rockauto has them in the Literature section.

Re: Rear axle-parts identyfication
 

Ok, I ordered some parts and am waiting for delivery :)

Re: Rear axle-parts identyfication
 

The brake cleaning mentioned is intriguing. What is washing soda?

Re: Rear axle-parts identyfication
 

Glad you asked Jim. See picture attached. It is sodium carbonate.
Has many uses, it is a great degreaser in when dissolved in hot water.

My dirty (blue) coveralls usually resemble the texture and color of a graphite pencil when I'm through with the job. To wash them, I soak them for a day in a bucket with hot water with a spoon of washing soda. After that they go into the washing machine.

Re: Rear axle-parts identyfication
 

Houston we have a problem... The ordered parts do not fit :/ on Saturday I was working on the brakes and when I tried to install the brake cylinder, it did not fit :/.
The ordered cylinder is bigger/larger than the original one, but the mounting points are the same. Now I don't know what to do. If I trim the limiter brake cylinder will fit, but I'm afraid of the diameter of the cylinder. It is larger than the original - similar diameter is in the front brakes. Rear brakes will be to strong..
Can i mount it and for example use brake proportioning valve?

PS fotos old front brake cylinder, new rear brake cylinder and old rear brake cylinder (smallest)
[IMG]
https://ibb.co/WWQHZJCG
https://ibb.co/yBsWTHLs
https://ibb.co/nMr63MkH
https://ibb.co/DD6G0yJt
https://ibb.co/mF5fx32B
https://ibb.co/xKsBM038
https://ibb.co/vvrHpp1w
[/IMG]

Re: Rear axle-parts identyfication
 

If there is enough adjustment to allow the drum to go on, I would used it. Measuring the OD of the cylinder is not the right way, the ID is what important as far as power being applied to the shoes. I would not use a proportioning valve if the ID are the same or within a mm or so (length only matter if the drum can't go on with everything that goes inside is assembled).

Side note (I case you don't know): The shoe that has the most lining gets mounted toward the rear of the truck.

Re: Rear axle-parts identyfication
 

It will be - I checked it

Yes i know it, diameter difference is 3.19 mm (28.39 vs 31.58)

I wondered about this before, because sometimes harder braking would end up locking the rear axle while the front wheels continued to turn. Now I think the problem will be bigger

I don't know what it means / don't understand :)

Re: Rear axle-parts identyfication
 

If the new one is 3.19 mm (.125") larger, then a proportioning valve might be necessary.

The brake shoes that come in the box will have enough for one axle, which is 4 shoes. If you lay them out and compare the lining on them you will see that two of them will have more linings on them than the other two. The one with the most linings (see attachment of the right rear brake) gets mounted toward the aft side of the axle. Looking back at your original picture of the Left Rear Brake it clearly show the different, aft shoe lining is longer than the front shoe.

Re: Rear axle-parts identyfication
 

Why is that?
In European cars, brake shoes are similar - there is no difference between front and rear on the same axle.

In my box of parts I found another brake cylinder-smaller than the original, but very close (less than 5 mm), but the inlet of the brake line has a smaller diameter, so I have to try to make new brake lines and find an end with the right thread which will not be easy-in the EU we use a different thread pitch. Model is a "profusion awc9026" can you help me with finding brake line inlet diameter?

Re: Rear axle-parts identyfication
 

I has been a very long time ago that I had worked on a european car and as I recalled you're right about the brake shoes linings being equal length. On an American car they're not (attached is a better picture of what I would have needed if I kept drum brakes on my 1964 1500 and it show the different between liner length). The different in length, as I recall from school, has to do with normal driving. 99% of the time you are driving forward and as you step on the brake the linings act as a wedge on the drum. As the lining wear the aft lining will wear more than the front one, so they made the aft lining longer on a single wheel cylinder design. Now that I think about the european cars that I had worked on was a dual wheel cylinders brake (two cylinders per wheel) and with that setup the linings would be equal length.

As far as the wheel cylinder specs, contact the manufacturer for it at: https://profusionbrakes.com/

Sorry if I wasn't much help.

Re: Rear axle-parts identyfication
 

I am probably buy another one.
Will it be suitable for my car?

https://www.rockauto.com/en/moreinfo...t=1952&jsn=970

Re: Rear axle-parts identyfication
 

If your truck is a 1964-1965 GMC 1500 and the part number (see attachment) from Rock Auto, then it is. What year and model is your truck? I don't remember.

Re: Rear axle-parts identyfication
 

theoretically C1000 but I have diffrent axles - 8 lugs. Pistion bore is the same and brake cylinder look similar to mine.
I recalculated the cost of new brake cylinders vs. new lines and proportional valve and the version with new cylinders will be easier and cheaper.

Re: Rear axle-parts identyfication
 

What is the year and model of your truck? 8 lugs should be a GMC 1500.

Re: Rear axle-parts identyfication
 

c1000 1965

Re: Rear axle-parts identyfication
 

A C1000. That would make your truck a Chevrolet and not a GMC. GMC does not use a letter in front of the number, but Chevrolet do. There will be some parts differences between the two manufactures. Do you have any pictures of your truck for everyone to see?

Re: Rear axle-parts identyfication
 

I just look up your original posting with the pictures. The front grill does says GMC. And it looks really good. Are you sure it is a C1000? With 8 lugs on all four wheels it should be a GMC 1500. Did you double check the data plate to see if it says C1000 or 1500 (with no letter in front of the number)?

Re: Rear axle-parts identyfication
 

Sorry for the mistake - GMC 1000. axles are definitely not from 1000, but probably from 1500/2500.
My car was recovered after being stolen, so I'm wondering if maybe there's a mistake in the paperwork and it's not a 1000 but a 1500/2500. What's the difference between the 1000 model and the 1500/2500 model?

Re: Rear axle-parts identyfication
 

The new parts have arrived. They look the same as the original ones, but while the inner diameter of the piston is identical, from the outside there is almost 1cm difference on the diameter of the housing.
And shipping from the US to PL was very fast - 2 days from order to delivery :D